Abstract: The conductive pillar in a semiconductor package has a gear-shaped top surface. The gear-shaped top surface has a plurality of protrusions distributed on the periphery of the gear-shaped top surface. Contour lines of each of the plurality of protrusions includes a smooth curve that bulges towards the space outside the conductive pillar. The conductive pillar can be defined by the space traversed by the gear-shaped top surface as it moves a certain distance in a direction perpendicular to the gear-shaped top surface. The conductive pillar can effectively enhance the adhesion between lateral surfaces of the conductive pillar and insulating materials.

Abstract: The embodiments provide a method, device, and storage medium for scheduling a distributed database. Load states of respective storage units in a first storage node in a distributed database are detected by any of a plurality of management devices of a distributed database, and a hotspot partition of the first storage unit is determined based on the load states; a replica splitting task for a target replica stored in the hotspot partition is generated, the replica splitting task comprising the target number of subreplicas of the target replica after splitting and migration target addresses of the subreplicas; the replica splitting task is executed by invoking a thread in a thread pool, to split the target replica into the subreplicas based on the target number of the subreplicas and migrate at least one of the subreplicas based on the migration target addresses of the subreplicas.

Abstract: The invention belongs to the field of drug preparations and discloses an ophthalmic sustained-release drug delivery system. The ophthalmic sustained-release drug delivery system consists of biocompatible solid and liquid substances, as well as substances with pharmacological activity and pharmacologically acceptable salt of the substances, and can be mixed with a matrix which is liquid at room temperature, has the density larger than that of water and almost incompatible with water, so that the drug release rate and the degradation time of the delivery system are changed. According to the sustained-release drug delivery system, a drug is solidified into a ball at an eye, so that the drug liquidity is reduced, drug release is sustained, the administration times is reduced, and the compliance of patients is improved.

Abstract: The invention relates to a method for triggering an acquisition of image data of an empty elevator car. The method comprises obtaining door status data representing a status of the door of the elevator car, obtaining occupancy status data representing an occupancy status of the elevator car, detecting based on the obtained door status data that the door of the elevator car is closed, detecting based on the obtained occupancy status data that the elevator car is empty, and generating a control signal to an imaging device arranged inside the elevator car in response to the detecting that the door of the elevator car is closed and the elevator car is empty. The control signal comprises an instruction to trigger the acquisition of the image data of the empty elevator car. The invention relates also to a triggering system for triggering an acquisition of image data of an empty elevator car and to an elevator system comprising a triggering system.

Abstract: The present application provides improved methods and compositions for in vitro transcription of mRNA that has reduced levels of dsRNA contaminant.

Abstract: Aspects of the disclosure are directed to integrating one or more large language models (LLMs) into a cloud database platform, such as a data warehouse. Users of the cloud database platform can provide queries to instruct one or more LLMs to perform generative natural language processing tasks by manipulating or generating text directly in the cloud database platform with a table valued function. Users can provide input to register or generate one or more LLMs of the cloud database platform for performing the natural language processing tasks. Integrating LLMs into the cloud database platform can improve processing capabilities of the LLMs and save computing resources, as specialized LLMs or application-specific API may no longer be necessary.

Abstract: A lattice-based proxy signature method, apparatus and device, a lattice-based proxy signature verification method, apparatus and device, and a storage medium. Polynomials are randomly selected in rings to calculate public and private keys of nodes, and the magnitudes of proxy public and private keys are the same as the magnitudes of public and private keys of an original signer. Therefore, compared with existing proxy signature schemes, the present application has smaller lengths of public and private keys and higher storage efficiency. Proxy signature information generated in the present application shows a signature of the original signer and also shows a signature of a proxy signer. Once a proxy signature is created, the proxy signature cannot be repudiated by the proxy signer, and has strong non-repudiation and strong unforgeability. The proxy signature method has the advantage of resisting quantum computer attack.

Abstract: Provided is a leakage monitoring device for a pneumatic drain valve of a steam turbine. The disclosure relates to the technical field of leakage monitoring of drain valve. The device includes an additional valve body, a top flange of the additional valve body is provided with an additional sealing cover, a bucket is installed in a middle of an inner side of the additional valve body, an upper part of a left side of an outer surface of the additional valve body is fixedly connected with a water inlet pipe, a first guide cavity is vertically arranged on the inner side of the additional valve body and close to the water inlet pipe and is communicated with the water inlet pipe.

Abstract: A method for monitoring a running state of a distributed system, an electronic device, and a storage medium are provided. The method comprises: acquiring a first calling key-value pair sent by a first component in a distributed system (101); and determining the current running state of the first component according to a first keyword value, and historical calling data corresponding to a first key code value in a preset database (102).

Abstract: This disclosure relates to techniques for multi-RAT and DSDA capable wireless devices to handle frame blanking in a wireless communication system. A wireless device may establish wireless links according to a first radio access technology and a second radio access technology. The wireless device may determine to perform transmit and receive blanking for one or more antennas of the wireless device for the first radio access technology to perform sounding reference signal transmissions for the second radio access technology based at least in part on a band combination for the wireless links. The wireless device may determine a modification to channel state feedback reporting for the first radio access technology based at least in part on the transmit and receive blanking. The wireless device may perform channel state feedback reporting using the determined modification.

Abstract: A method for preparing a refractory from a secondary aluminum dross, the secondary aluminum dross including silica and alumina, and the refractory including a basic magnesium-aluminum refractory or an acidic magnesium-aluminum-silicon refractory; when the secondary aluminum dross includes less than 5% by mass of silica, the refractory is the basic magnesium-aluminum refractory, and the method includes: subjecting a secondary aluminum dross powder, an aluminum source, a magnesium source and a magnesia-alumina spinel seed crystal to first mixing, and subjecting a resulting first mixture to one-step sintering to obtain the basic magnesium-aluminum refractory; when the secondary aluminum dross includes not less than 5% by mass of silica, the refractory is the acidic magnesium-aluminum-silicon refractory, and the method includes: subjecting a secondary aluminum dross powder, a silicon source, and a magnesium source to second mixing, and subjecting a resulting second mixture to one-step sintering to obtain the acid

Abstract: Some embodiments of the disclosure describe an evaluation system based on analyte data including a memory storing a program, a display, and a processor. In some examples, the processor is configured to: receive analyte data during a predetermined time period from an object to be tested, acquire a plurality of analyte indicators different from each other based on the analyte data, normalize the plurality of analyte indicators to a predetermined range to acquire a plurality of normalized analyte indicators, plot a polygon pattern corresponding to the analyte data during the first time period as a target polygon pattern, plot a polygon pattern corresponding to the analyte data during the second time period as a reference polygon pattern, and take a line segment between a vertex and a center point as an axis, and display the target polygon pattern and the reference polygon pattern.

Abstract: An optical satellite remote sensing transfer calibration method based on near-space aerostat, including: performing a temporal-spatial matching between first observation image data of a target region collected by a benchmark radiometric payload and second observation image data of the target region collected by a satellite-borne payload, to obtain a plurality of matchups of observation image data (S1); obtaining an average radiance of the benchmark radiometric payload from a plurality of first observation image data (S2); obtaining an average DN captured by the satellite payload in the target region from a plurality of second observation image data (S3); obtaining a matching radiance for an observation band of the benchmark radiometric payload corresponding to the satellite payload based on the average radiance of the benchmark radiometric payload (S4); and obtaining a calibration coefficient of the satellite payload based on the matching radiance and the average DN (S5).

Abstract: The invention relates to a diagnostic method and system for drip irrigation cotton with nitrogen nutrient deficit. First, the sensitive leaf layer of cotton is determined according to the growth stage of cotton, and the spectral reflectance and biomass of each functional leaf in the sensitive leaf layer are collected to calculate average spectral reflectance of the sensitive leaf layer and the maximum leaf biomass. Then, the critical nitrogen concentration was calculated according to the maximum leaf biomass. Finally, the nitrogen nutrition index of cotton is calculated according to the nitrogen concentration and the critical nitrogen concentration. The nitrogen nutrition index is used to characterize the abundance and deficiency of nitrogen nutrition in cotton, so as to determine the abundance and deficiency of nitrogen nutrition in cotton, which can reduce the calculation amount of nitrogen nutrition index, diagnose the abundance and deficiency of nitrogen nutrition in drip irrigation cotton.

Abstract: A method of programming a ferroelectric memory device is disclosed. The method includes applying a first voltage to a first word line; applying a second voltage to the first word line; and applying a pass voltage to a second word line during a period of applying the first voltage to the first word line and during a period of applying the second voltage to the first word line. The pass voltage is between the first threshold voltage and the second threshold voltage.

Abstract: In accordance with an embodiment, an earphone includes: a housing having a cavity structure disposed within, and a sound output port in communication with the cavity structure; and a first sound transducer, a second sound transducer, and a third sound transducer disposed in the cavity structure, wherein: a sound production frequency of the second sound transducer is greater than a sound production frequency of the third sound transducer and is less than a sound production frequency of the first sound transducer, and the third sound transducer is a micro-electro-mechanical-system located between the first sound transducer and the sound output port.

Abstract: A power converter includes an electrical network including a plurality of intermediate nodes. Each intermediate node is configured to connect to one phase of an alternating current (AC) electrical power source, the electrical network is configured to convert AC electrical current to direct current (DC) electrical current, and the electrical network includes a plurality of electronic switches. The power converter also includes a DC link electrically connected to the electrical network; a pre-charge path electrically connected to the DC link, the pre-charge path including a pre-charge impedance; a control path electrically connected to one of the electronic switches, the control path including a relay; and a control system configured to analyze a 10 plurality of electrical measurements from the power converter to determine a status output; and determine whether to control the relay to change state based on the status output.

Abstract: A method comprises: determining that a vehicle is at a first location; controlling motion of the vehicle using an advanced driver assistance system (ADAS); determining a second location for the vehicle based on receiving a first sensor return indicating at least a first static object and a second static object; determining a third location for the vehicle based on a heading angle of the vehicle and a first travel distance of the vehicle since the first location; determining a fourth location for the vehicle by fusing the second and third locations with each other, and controlling the motion of the vehicle using the ADAS based on the fourth location.

Abstract: The hinge mechanism includes a main shaft, a synchronization assembly, a first housing mounting bracket, and a second housing mounting bracket. The first housing mounting bracket and the second housing mounting bracket are located on two opposite sides of the main shaft, and the synchronization assembly is located between the first housing mounting bracket and the second housing mounting bracket. The synchronization assembly includes a first connecting rod, a second connecting rod, and a third connecting rod. The first connecting rod and the third connecting rod are rotatably connected via the second connecting rod, the first connecting rod is rotatably connected to the main shaft. The third connecting rod is slidably connected to the second housing mounting bracket. The first housing mounting bracket is provided with a first track slot, and the first connecting rod slides along the first track slot.

Abstract: A cascade-based power dissipation optimization method and system for an amplification circuit are provided. The method includes: S1, acquiring a relationship of power dissipation of an amplification circuit to input signal amplitudes and voltage gains by means of statistical analysis; and S2, designing an optimal cascade strategy for the amplification circuit according to the relationship of the power dissipation of the amplification circuit to the input signal amplitudes and the voltage gains, and adjusting the number of stages of the amplification circuit and a voltage gain of each stage of the amplification circuit so as to minimize total power dissipation of the amplification circuit.