Abstract: Described are a viscosity reducer and a preparation method therefor and the use thereof, and a method for improving the crude-oil pollution resistance of a drilling fluid. The viscosity reducer includes a matrix and particles attached to the surface of the matrix and/or wrapped in the matrix. The matrix includes an oleophilic moiety and a hydrophilic moiety. The particles do not melt at 100° C. or lower. The number of the particles in the viscosity reducer in an area of 10*10 ?m is 1-1500 according to analysis using a scanning electron microscope. The viscosity reducer can be applied to an oil-based drilling fluid and a synthetic drilling fluid to improve the crude-oil pollution resistance of the drilling fluids; and the viscosity reducer can also be used in a drilling fluid permeated by crude oil, so as to alleviate the problem of thickening caused by crude oil permeating the drilling fluid.

Abstract: According to embodiment of the disclosure, there are provided a method, apparatus, device and a storage medium for page interaction. The method includes: presenting a content display page at least for presenting a media content item; providing, in response to detecting a preset trigger operation, an operation panel in an active layer of the content display page, the media content item being presented in a background layer of the content display page, the operation panel at least including a plurality of options respectively corresponding to a plurality of view modes, and presenting, in response to detecting a selection operation on a first option of the plurality of options, the media content item in a first view mode corresponding to the first option in the background layer of the content display page while maintaining presentation of the operation panel in the active layer of the content display page.

Abstract: A fused bicyclic compound represented by formula (II), a stereoisomer or a pharmaceutically acceptable salt thereof, a preparation method therefor, a pharmaceutical composition containing the compound, and a use thereof in treating diseases.

Abstract: Described are a composite emulsifier and an oil-based drilling fluid. The composite emulsifier includes a main emulsifier and an auxiliary emulsifier. The auxiliary emulsifier is a sulfonated substance and/or carboxylation product of the main emulsifier. The composite emulsifier has a good emulsification effect and good electrical stability and thermal stability, and can greatly reduce difficulties in compounding at a drilling site.

Abstract: A method can include acquiring motion sensor data using a motion sensor at a motion sensor location of a tool string disposed in a borehole during a field operation; transmitting the motion sensor data to transfer function circuitry of the tool string; operating the transfer function circuitry to apply a transfer function to the motion sensor data to determine one or more of lateral displacement and velocity at a location of the tool string that is a distance from the motion sensor location; and characterizing sensor data acquired by a sensor at the location using at least one of the one or more of the lateral displacement and the velocity.

Abstract: Disclosed is a kompetitive allele-specific PCR (KASP)-based Artemia core molecular marker combination and use thereof, which relates to the technical fields of molecular biology, plant germplasm resources, and molecular breeding. In the present application, 13 Artemia core markers are screened and designed from 530,000 SNP markers generated by reduced-representation genome sequencing of 290 Artemia resources. The marker combination is used to construct an Artemia SNP fingerprint, detect authenticity of Artemia species, ensure reliability of Artemia resource collection, analyze a genetic relationship of Artemia resources, and guide Artemia breeding.

Abstract: Biomedicine, in particular an N-terminal fragment of insulin-like growth factor binding protein-4, can be used in the clinical assessment of heart failure and coronary heart disease.

Abstract: A computer-implemented method is disclosed in which a first machine-learning model is used to generate an intermediate estimate of a target signal within input audio. Based on this estimate and the input audio, parameters of an adaptive filter are computed. The adaptive filter is then applied to the input audio to produce a filtered audio signal. A second machine-learning model generates an enhanced audio signal based at least in part on the filtered signal, with both models jointly trained end-to-end to enhance the target signal. Various other aspects are also disclosed.

Abstract: A method of advanced packaging and interconnection of through silicon vias (TSVs) with high aspect ratios, it includes deposition of a seed layer, a plasma treatment o, and filled by electroplating copper.

Abstract: Techniques are described herein that are capable of performing transfer-learning for structured data with regard to journeys defined by sets of actions. A first deep neural network (DNN) for a first journey is trained using structured data. Weights of nodes in the first DNN are transferred to nodes in a second DNN for a second journey using transfer-learning. An embedding layer replaces a final layer of the first DNN in the second DNN to provide an output with a same number of nodes as a pre-final layer of the first DNN. Weights of the nodes in the embedding layer are initialized based at least on a probability that a new feature of the second journey co-occurs with each feature in the structured data. A softmax function is applied on a final layer of the second DNN to indicate possible next actions of the second journey.

Abstract: An ionizable lipid and a drug delivery system including the ionizable lipid are provided. Specifically, an ionizable lipid having the structure of formula (I), or a pharmaceutically acceptable salt, tautomer or stereoisomer thereof are provided. Lipid nanoparticles constructed by using the ionizable lipid can realize safe and efficient delivery of nucleic acid drugs, small molecule drugs, peptide drugs and protein drugs.

Abstract: A three-dimensional integrated circuit includes a first CMOS wafer, a second CMOS wafer disposed on and electrically connected to the first CMOS wafer, one or more thick metal layers including an inductive device disposed on the second CMOS wafer opposite the first CMOS wafer, and a grounded shield positioned to isolate the inductive device from the first CMOS wafer and the second CMOS wafer.

Abstract: A cooling filter rod and an application thereof are disclosed. The filter rod comprises a hollow tube (1). The inside of the hollow tube (1) is provided with at least one plate (2) which partition the inside of the hollow tube and is perpendicular to the axis of the hollow tube (1). The area of the plate (2) is the same as the cross-sectional area of a hollow portion of the hollow tube (1) Each plate (2) is independently provided with at least one through hole (3). The cooling filter rod reduces the adsorption of cigarette smoke, greatly lowers the smoke temperature felt by mouth, improves the sensory quality of cigarettes, and is suitable for application in new heat-not-burn cigarettes.

Abstract: A kick scooter having a detachable steering mechanism is provided. A detachable mounting seat is provided on an outer peripheral wall of a vertical rod of the kick scooter, and includes a left housing and a right housing. The left housing is inserted into a mounting through hole through an internally-threaded column, and the right housing is mounted on the vertical rod. A countersunk screw is inserted into the internally-threaded column from the first countersunk through hole, and is screwed to be threadedly connected to the internally-threaded column. The engagement structure is engaged to the rotating connection member. When disassembling, the countersunk screw is unscrewed from the internally-threaded column and the left and right housings are removed from the vertical rod. The engagement mechanism releases the engagement of the rotating connection member, and the vertical rod and pedal are separated and stored or transported as two parts.

Abstract: The present invention provides a portable ventilator suitable for cardiopulmonary resuscitation (CPR) and a control method thereof. According to the present invention, the number of external chest compressions in a CPR process can be automatically recognized on the basis of reverse airflow, and a compression period and a relaxation period can be determined. The portable ventilator has an automatic 30:2 ventilation mode suitable for non-intubated patients and a variable-volume ventilation mode suitable for patients with advanced airways. The present invention can improve the efficiency of first aid and avoid barotrauma, is suitable for the first aid during CPR, and can achieve precise flow control.

Abstract: The disclosure relates to a method for eliminating interference of theophylline in immunoassay and an immunodetection kit. The method for eliminating interference of theophylline in immunoassay includes: performing an immunoassay in the presence of a theophylline interference-resistant agent, the theophylline interference-resistant agent having a final concentration of 0.1 mg/mL-100 mg/mL, and being selected as at least one component from a group consisting of free 6-mercaptopurine, 6-thioguanine, 8-azguanine, hypoxanthine, adenine, purine, 2,6,8-trioxypurine, adenine nucleotide, and adenosine. The method and the kit can effectively reduce interference of theophylline on immunoassay results.

Abstract: Provided is a rotating shaft mechanism of an electronic device. A first fixing assembly and a second fixing assembly in the rotating shaft mechanism are connected to each other by a first connector and a second connector. A hollow region can be reserved in the rotating shaft mechanism as the first connector and the second connector may be shorter. Thus, an external circuit of the electronic device can pass through the hollow region and be disposed in a second body of the electronic device. An electronic device is also provided.

Abstract: This application provides a communication method and apparatus, and relates to the communication field. A terminal device can send uplink information on a plurality of mutually independent transmit chains Txs. The method includes: The terminal device sends capability information, where the capability information indicates that the terminal device supports FSTD of the plurality of mutually independent Txs; receives first information, where the first information indicates an uplink resource, the uplink resource includes a plurality of resource sets, and the plurality of resource sets respectively correspond to the plurality of Txs; and sends uplink information on the plurality of resource sets.