Abstract: A high-frequency composite impactor including a high-frequency axial and a torsional impact assembly is disclosed. The high-frequency axial impact assembly includes an upper self-excited oscillation cavity, a lower self-excited oscillation cavity, an adjustment block and a lock nut. The torsional impact assembly includes an upper end cover, a reversing switch, a pendulum, a lower shell, a lower end cover, a nozzle, a connecting block and a retaining ring. The high-frequency axial impact assembly converts the flowing drilling fluid into a pulsed jet to achieve a high-frequency axial impact. The torsional impact assembly enables a torsional impact through a shunt, and finally enables a high-frequency composite impact, which can effectively reduce the stick-slip of the drill string, jump drilling and other downhole accidents. By reducing the friction between the drill string and the borehole wall, the impactor can reduce WOB loss, increase the ROP, and improve the drilling efficiency.

Abstract: A structure, a method, and an electronic device for multi-coil handheld magnetic particle imaging (MPI) are provided. The structure for multi-coil handheld MPI includes a processing device, a control device, an imager, a gradient and scanning module, an excitation and correction module, and a detection module, where the gradient and scanning module includes a first circular coil pair and a second circular coil pair; the excitation and correction module includes a circular excitation and correction coil; and the detection module includes a circular detection coil. The structure for multi-coil handheld MPI focuses the imaging region in a specific part, improving the MPI accuracy, and features small volume, simple structure, and low power consumption.

Abstract: The present application discloses a system and a device for functional connectivity matrix processing based on feature selection using a filtering method, which comprises the following steps: acquiring a preprocessed resting state brain functional magnetic resonance image of a subject; extracting time series; calculating a Pearson correlation coefficient to obtain a Pearson correlation coefficient matrix; vectorizing the Pearson correlation coefficient matrix; calculating quantitative correlation indices using a filtering method, and selecting a quantitative correlation index based on a preset threshold; performing weighting processing a selected functional connectivity feature by using the corresponding quantitative correlation index with high correlation with a disease diagnosis result to obtain a functional connectivity matrix; and obtaining a prediction result from the functional connectivity matrix.

Abstract: The present disclosure discloses a general speech enhancement method and apparatus using multi-source auxiliary information. The method includes following steps: S1: building a training data set; S2: using the training data set to learn network parameters of a model, and building a speech enhancement model; S3: building a sound source information database in a pre-collection or on-site collection mode; S4: acquiring an input of the speech enhancement model; and S5: taking a noisy original signal as a main input of the speech enhancement model, taking auxiliary sound signals of a target source group and auxiliary sound signals of an interference source group as side inputs of the speech enhancement model for speech enhancement, and obtaining an enhanced speech signal.

Abstract: An anaerobic-AO-SACR combined advanced nitrogen removal system for high ammonia-nitrogen wastewater, in which high ammonia-nitrogen wastewater first enters an anaerobic reactor to remove most of organic matters from the wastewater, effluent water enters an AO reactor for nitrogen removal by pre-denitrification in an anoxic zone and for removal of the remaining organic matters and nitrification of ammonia nitrogen in an aerobic zone, and then the effluent water enters an intermediate pool. Meanwhile, under the control of a water quality testing device and a PLC controller, a part of raw water is introduced into the intermediate pool to adjust the carbon nitrogen ratio of the wastewater.

Abstract: The invention provides a reaction system for preparing butyraldehyde by propylene carbonylation, comprising: a reactor; a side wall of the reactor is sequentially provided with a catalyst inlet, a propylene inlet and a synthesis gas inlet from top to bottom; the bottom of the reactor is provided with a solvent inlet; two micro-interface generators are arranged inside of the reactor from top to bottom, and the micro-interface generator located at a top end is connected to the propylene inlet to break the propylene gas into micron-scale micro-bubbles; the micro-interface generator located at a bottom is connected to the synthesis gas inlet for breaking the synthesis gas into micron-scale micro-bubbles; the outlets of the two micro-interface generators are opposite, and the outlets are connected with a gas distributor for evenly distributing raw materials.

Abstract: The present disclosure discloses a medical ETL task dispatching method, system and apparatus based on multiple centers. The method includes following steps: step S1: testing and verifying ETL tasks; step S2: deploying the ETL tasks to a hospital center, and dispatching the ETL tasks to a plurality of executors for execution; step S3: screening an executor set meeting resource demands of ETL tasks to be dispatched; step S4: calculating a current task load of each executor in the executor set; step S5: selecting the executor with a minimum current task load to execute the ETL tasks; and step S6: selecting, by the dispatching machine, the ETL tasks from executor active queues according to a priority for execution. The present disclosure selects the most suitable executor by analyzing a serving index as a task to be dispatched on a current dispatching machine.

Abstract: A handheld MPI system and method based on field free line (FFL) rotation is provided. The handheld MPI system includes: a gradient module configured to construct a gradient field with an FFL; a cooling module configured to cool the gradient module; an excitation module configured to excite magnetic particles in a region of the FFL; a detection module configured to receive an excitation response signal of the magnetic particles and counteract an excitation signal directly induced by a reception coil; a rotation module configured to control the gradient module and the cooling module to rotate around an axis of an excitation coil; a control and signal processing module configured to control each module to operate as needed, and process a received magnetic particle induction signal; and an image reconstruction module configured to reconstruct a magnetic particle distribution into a two-dimensional image.

Abstract: In certain aspects, a memory device includes a memory string including a drain select gate (DSG) transistor, a plurality of memory cells, and a source select gate (SSG) transistor, and a peripheral circuit coupled to the memory string. The peripheral circuit is configured to in response to an interrupt during a program operation on a select memory cell of the plurality of memory cells, turn on at least one of the DSG transistor or the SSG transistor. The peripheral circuit is also configured to suspend the program operation after turning on the at least one of the DSG transistor or the SSG transistor.

Abstract: A method to convert a jet board, which may include an electric surfboard, an electric standup paddle board, an electric hydrofoil board, into a personal watercraft (PWC). The method includes attaching an add-on module onto the jet board where the add-on module provides handles and a seat but does not provide a source of propulsion. The resulting personal watercraft is, instead. driven by the propulsion system of the jet board.

Abstract: The present disclosure discloses a multi-component abstract association and fusion method and apparatus in page design. The method includes the following steps: step S1: a construction demand is acquired, and the construction demand is analyzed through a speech recognition method to obtain a natural language text; step S2: an abstract model is constructed by predefining a component library, a rule library and a relationship library, and the abstract model performs components fusion to obtain a JSON structure of a fused component; step S3: the JSON structure of the fused component is escaped into a virtual DOM by using a rendering function, and attributes and events of a virtual DOM node are mapped to obtain a fused component drawing result; and step S4: a real DOM structure is created and interpolated into a real DOM node, so as to realize display of the fused component on a view.

Abstract: A method of measuring airflow velocity using an integrated heating airspeed tube where the integrated heating airspeed tube has a tube body and a heating component. The tube body is provided with a heating cavity, the heating component is located inside the heating cavity, and the heating component and the tube body are integrally formed. The heating component and at least two static pressure air inlet channels are physically separate but overlap in a lengthwise directly within a horizontal portion of the airspeed tube. The tube body integrally forms the static pressure air inlet channel, the dynamic pressure air inlet channel, the heating cavity, the dynamic pressure air inlet hole, and the static pressure air inlet hole as a unitary one-piece structure.

Abstract: Discloses a method and an apparatus for visual construction of a knowledge graph system. In the present disclosure, data permission of a distributed client is determined through a central server. The central server obtains a master template of a knowledge graph system and sends it to the distributed client. The distributed client receives a natural language inputted by a user and parses to generate an abstract syntax tree. The user completes customization of a subtemplate of the knowledge graph system through visual operation. The distributed client encrypts the subtemplate and then sends it to the central server. When the knowledge graph system is to be used, any knowledge concept is inputted, the central server calls and decrypts the subtemplate and then searches a database, and a tree structure knowledge graph is generated and sent to the distributed client.

Abstract: The present disclosure discloses a similar patients identification method and system based on a patient representation image. The method includes following steps: S1: building a healthcare knowledge graph: generating the healthcare knowledge graph by extracting entities and a relationship between the entities in a knowledge source; S2: building a healthcare knowledge graph space vector library; S3: building a patient's personal healthcare knowledge graph space vector data set; S4: drawing a patient's personal healthcare representation image; and S5: performing similar patients identification based on graph similarity calculation. The present disclosure builds a visual patient representation mode, so as to convert patient's healthcare data into a visual image, so that a doctor may intuitively feel a difference of different patients and similarity of similar patients.

Abstract: The disclosure is directed to methods of inhibiting coronavirus infection using a hydrocarbon stapled peptide which is a peptidomimetic of the human angiotensin-converting enzyme 2 (hACE2). The hydrocarbon stapled peptide binds to the receptor binding domain (RBD) of a coronavirus spike protein (S) and inhibits binding of the coronavirus to hACE2 expressed on the surface of host cells.

Abstract: Disclosed is an emergency blood dispatching method and system based on early prediction and unmanned fast delivery. In the present disclosure, an emergency blood use prediction model and an unmanned aerial vehicle fast delivery route are introduced, blood use demands of pre-hospital emergency trauma patients are accurately predicted, pre-hospital emergency blood transfusion of patients is achieved through unmanned aerial vehicle sites, it does not need to consume a lot of road traffic time to arrive at a hospital and then starts blood transfusion, the speed of blood supply and treatment quality of the patients with massive traumatic hemorrhage are improved, and it is of great value to rescue remote mountain trauma patients. The present disclosure evaluates blood use demands of the hospital in real time, and combines an unmanned aerial vehicle and a blood delivery car to fast deliver needed blood products from a blood center to the hospital.

Abstract: A UAV landing platform having movable covers to securely store/maintain/charge a UAV. The UAV may be launched from the landing platform, and the landing platform can have visual indicators to guide the landing of the UAV back onto the landing platform. There can be an optional mechanism to self-adjust/self-level the landing surface such that a UAV can safely land onto the landing platform even when the landing platform is on a traveling vehicle.

Abstract: The present disclosure discloses a publicity-education pushing method and system based on a multi-source information fusion. The method includes: step S1: constructing a patient publicity-education knowledge graph, and pushing the patient publicity-education knowledge graph to a patient through a publicity-education applet; step S2: fusing and correcting patient basic information, patient diagnosis-treatment information, patient eye movement information and a patient personality inventory to obtain patient multi-source information; step S3: constructing a compliance prediction model through a neural network by using the patient multi-source information and collected patient medication taking behavior data; and step S5: building a system rule base, and after searching for a corresponding disease and treatment in the patient publicity-education knowledge graph through information returned by the system rule base, pushing the disease and the treatment to the patient through the publicity-education applet.

Abstract: The present disclosure discloses a method and system for automatically and quickly deploying a front-end processor based on gray release. The system includes a user management module, a front-end processor engineering configuration module, a version iteration module and an engineering code version management repository, where the version iteration module is connected with the engineering code version management repository, the user management module and the front-end processor engineering configuration module, a code is obtained through the engineering code version management repository to perform updating or rollback of a current code, an operating permission of the front-end processor is obtained by using the user management module, an engineering configuration parameter is obtained from the front-end processor engineering configuration module for engineering gray release of a plurality of front-end processors, and a task scheduling function therein is called.

Abstract: One or more computing devices, systems, and/or methods are provided. In an example, a first performance metric score may be determined based upon first content item text. A plurality of similarity scores associated with a plurality of sets of content item text may be determined. One or more sets of content item text may be selected from among the plurality of sets of content item text based upon the plurality of similarity scores and a plurality of performance metric scores associated with the plurality of sets of content item text. The plurality of performance metric scores may comprise one or more performance metric scores associated with the one or more sets of content item text. The one or more performance metric scores may be higher than the first performance metric score. One or more representations of the one or more sets of content item text may be displayed.