Abstract: Embodiments of the application provide a method and device for training a cash-return recognition model and a method and device for cash-return recognition, the training method comprises: acquiring first transaction information of a first transaction and a first cash-return label value of the first transaction; calculating a first cash-return predictive value for the first transaction, and a Q-value's label value corresponding to the first transaction information and the first cash-return predictive value; and training a Deep Q-Network (DQN) by adjusting parameters of the DQN such that an absolute value of a difference between a first Q-value's predictive value output by the trained DQN and the Q-value's label value is smaller than that between the first Q-value's predictive value output by the untrained DQN and the Q-value's label value, the first Q-value's predictive value obtained by inputting the first transaction information and the first cash-return predictive value to the DQN.

Abstract: The present invention provides destructible, digestible, or dissolvable microwell arrays, such as hydrogel microwell arrays, which are useful for segregating, culturing, and analyzing biological samples such as cells and mixtures of cells.

Abstract: A route updating method and a user cluster is disclosed. A master node of the user cluster operates in a worker node of a cluster provided by a service provider. The user cluster includes at least one worker node in which a BGP routing client operates, a BGP routing server operates in the master node, a BGP connection exists between the BGP routing client and the BGP routing server. When the BGP routing client detects that a new component is created by a worker node, the BGP routing client sends a route adding request corresponding to the component to the BGP routing server. When received, the BGP routing server adds a route table entry including the IP address of the component and the IP address of the worker node where the BGP routing client is located to a local route table of the master node.

Abstract: The present disclosure provides, among other things, methods and devices for single cells/particle selection and isolation from a sample in a light-curable biomatrix gel. The individual cells or particles are observed by microscopy and manipulated and isolated by accurately controlling the light transmission from a liquid crystal display (LCD) oriented under the sample to provide a detailed image of the sample. In some embodiments, selected cells or particles are then immobilized by curing the biomatrix gel with blue/violet light transmitted from a LED pixel array. In other embodiments, the selected cells or particles of interest are allowed to remain mobile. In either embodiment, the individual cells or particles of interest are segregated from and isolated from the remainder of the sample.

Abstract: Provided are an interaction method and apparatus in a live streaming room, and a device and a storage medium. The method comprises: in response to a trigger operation for a preset duet entry on a live streaming room page, jumping from the live streaming room page to a camera capture page, wherein a host portrait cutout corresponding to the live streaming room page is displayed on the camera capture page and a capture control is provided on the camera capture page acquiring multimedia information captured by a camera, in response to a trigger operation for the capture control on the camera capture page, wherein the multimedia information comprises an image or a video; and synthesizing the multimedia information with the host portrait cutout to obtain a duet multimedia product.

Abstract: A second blockchain system receives a first consensus message from a first blockchain system, the first blockchain system includes first nodes that provide services to at least a first account, and the second blockchain system includes second nodes that provide services to at least a second account. The first consensus message indicates a first plurality of the first nodes reaches a consensus for transferring a resource from the first account to the second account. The second blockchain system transfers the resource in the task to the second account. The transferring includes that a node in the second nodes adds the resource to the second account and generates a fourth block that records a completion of a transfer event. A second consensus message is transmitted from the second blockchain system to the first blockchain system in response to a second plurality of the second nodes completing the transfer event.

Abstract: An ultrasonic probe holder includes a probe holder frame, an arc plate, a follower plate, and a plurality of contacts. The frame can have at least one aperture extending therethrough, open in the downward direction, and defining an open lower end of the frame. The arc plate can be positioned within the aperture, extend between opposed, curved lateral edges, and couple to the frame. The follower plate can be mounted to a lower end of the arc plate and include arms extending laterally outward from a vertical axis in the plane of the arc plate. The contacts can be slidably mounted to the arms of the follower plate and extend in the vertical direction. The arc plate can be constrained in the plane of the frame and to pivot with respect to the frame in response to vertical movement of one or more of the plurality of contacts.

Abstract: Aspects of the disclosure provide methods and apparatuses for storing data. In some examples, an information processing apparatus that includes processing circuitry is provided. The processing circuitry is configured to receive data and determine a target blockchain based on an attribute associated with the data and blockchain correspondence information. The blockchain correspondence information indicates attributes associated with a plurality of blockchains. Further, the processing circuitry is configured to store a first block that is generated based on the received data in the target blockchain.

Abstract: Provided is a dynamic characteristic measurement method for a cylinder block of a non-intrusive axial piston pump. The cylinder block is the main rotating component of the axial piston pump, and the dynamic characteristic of the cylinder block is more capable of reflecting the health condition of the pump than an external characteristic. A non-contact type measurement scheme is provided so as to reduce the influence of a measurement device on the motion of the cylinder block. Cylinder block contour signals and radial displacement signals are obtained by measuring the radial displacement of two sections of the surface of the cylinder block under different working conditions in the perpendicular directions, and then the cylinder block contour signals are accurately removed from the radial displacement signals to obtain the translational and tilting motion characteristics of the cylinder block.

Abstract: A device and method for enhancing nitrogen and phosphorus removal based on a multistage AO partial denitrification coupled with Anammox process in combination with a sludge hydrolytic acidification mixture belong to the technical field of active sludge method wastewater treatment. A system includes a water tank, a water pump, a biochemical reaction zone, a hydrolytic acidification tank and other devices.

Abstract: The present disclosure is directed to extracting text from form-like documents. In particular, a computing system can obtain an image of a document that contains a plurality of portions of text. The computing system can extract one or more candidate text portions for each field type included in a target schema. The computing system can generate a respective input feature vector for each candidate for the field type. The computing system can generate a respective candidate embedding for the candidate text portion. The computing system can determine a respective score for each candidate text portion for the field type based at least in part on the respective candidate embedding for the candidate text portion. The computing system can assign one or more of the candidate text portions to the field type based on the respective scores.

Abstract: The embodiment of the present application provides a route updating method and a user cluster, wherein a master node of the user cluster operates in a worker node of a cluster provided by a service provider, and the user cluster further comprises at least one worker node in which a BGP routing client operates, a BGP routing server operates in the master node, a BGP connection exists between the BGP routing client and the BGP routing server. When the BGP routing client detects that a new component is created by a worker node where the BGP routing client is located, the BGP routing client sends a route adding request corresponding to the component to the BGP routing server. When the route adding request is received, the BGP routing server adds a route table entry including the IP address of the component and the IP address of the worker node where the BGP routing client is located to a local route table of the master node.

Abstract: The present application relates to a method, apparatus and system for recognizing a tremor symptom, a recognition terminal and a storage medium. The method includes: receiving an image to be recognized which is uploaded by a user terminal, where the image to be recognized includes spiral graph used for recognizing whether a drawing person has a tremor state or not and evaluating a tremor level; and taking the image to be recognized as an input value of a pre-trained convolutional neural network regression device to obtain a tremor level. By using the method, the tremor can be recognized by means of images, which is non-invasive and patient-friendly, and since a model is a deep learning algorithm trained on a large spiral image dataset, results of evaluating the severity of essential tremor are accurate and consistent.

Abstract: The present application relates to the technical field of battery equipment and electric vehicles, disclosing a battery pack liquid-cooled plate and a battery pack. A battery pack liquid-cooled plate comprises: a liquid-cooled bottom plate for bottom cooling of a battery, wherein a first cooling channel is provided in the liquid-cooled bottom plate; multiple liquid-cooled side plates used for side cooling of the battery, wherein a second cooling channel is provided in each liquid-cooled side plate, each liquid-cooled side plate and the liquid-cooled bottom plate are arranged perpendicular to each other, and a flow channel of each liquid-cooled side plate interconnects with each other through a multi-pass device to form a flow-channel structure.

Abstract: The present disclosure is directed to extracting text from form-like documents. In particular, a computing system can obtain an image of a document that contains a plurality of portions of text. The computing system can extract one or more candidate text portions for each field type included in a target schema. The computing system can generate a respective input feature vector for each candidate for the field type. The computing system can generate a respective candidate embedding for the candidate text portion. The computing system can determine a respective score for each candidate text portion for the field type based at least in part on the respective candidate embedding for the candidate text portion. The computing system can assign one or more of the candidate text portions to the field type based on the respective scores.

Abstract: A scour-resistant interface enhancer, a preparation method, and an application thereof are provided. The scour-resistant interface enhancer is a compound solution prepared by using a 0.1% surfactant CAEO-15 and a 0.3% silane coupling agent as solutes and using clear water and absolute ethanol as solvents, where the mass ratio of clear water to absolute ethanol is 9:1. The scour-resistant interface enhancer of the present invention used as pre-flush for well cementing of coalbed methane wells has good wettability modification effect, shows scour-resistant effect against cement slurry, exhibits good compatibility with cement slurry system, and can significantly improve the cementing strength and air tightness of two interfaces of coal bed and effectively enhance the cementing quality of coalbed methane wells.

Abstract: This application discloses a virtual picture display method performed by a computer device. The method includes: displaying a virtual environment picture, the virtual environment picture comprising a first object and a virtual prop controlled by a first virtual object; receiving an interaction operation for the first virtual object to interact with the first object by using the virtual prop, and the first region comprising a first environment element; in response to the interaction operation and the first object meeting an environment switching condition, displaying an element switching process of switching a first environment element located in a first region of the virtual environment to a second environment element; and in response to completion of the element switching process, displaying the second environment element located in the first region of the virtual environment.

Abstract: A prop control method in a virtual scene is performed by a computer device. The method includes: displaying a first scene picture of the virtual scene, the first scene picture including a first virtual object and a scene element; when a distance between the first virtual object and the scene element in the virtual scene meets a predefined condition, receiving a prop pull operation for the scene element by the first virtual object; and in response to the prop pull operation for the scene element, controlling the first virtual object pull a target virtual prop corresponding to the scene element closer to the first virtual object. By using the foregoing method, when a user controls a virtual object to interact with a virtual prop, the power consumption and data usage of a computer device is reduced.

Abstract: A virtual scene transformation method includes: displaying a first virtual scene picture, the first virtual scene picture comprising a first scene model in a virtual scene, and the first virtual scene picture being about the virtual scene observed by a virtual object; while the virtual scene is observed by the virtual object, displaying a scene transformation when the virtual scene meets a scene transformation condition, the scene transformation including a first stage in which the first scene model is gradually deleted, and a second stage in which a second scene model is gradually generated in the virtual scene, the second stage lagging behind the first stage; and displaying a second virtual scene picture when the scene transformation is completed, the second virtual scene picture comprising the second scene model.

Abstract: The present disclosure discloses a client device having a digital signature. The client device includes processing circuitry configured to send a message to be stored in nodes after the nodes reach a consensus on the message. The message includes the digital signature of the client device. The processing circuitry obtains results from a subset of the nodes that receive the message. The results have respective digital signatures of the subset of the nodes. The nodes are in a first consensus mode for reaching the consensus on the message. After verifying the digital signatures, the processing circuitry determines whether one or more of the nodes has malfunctioned based on the results. Based on a determination that the one or more of the nodes has malfunctioned, the processing circuitry triggers the nodes to switch from the first consensus mode to a second consensus mode for reaching the consensus on the message.