Abstract: A key-value store and a file system are integrated together to provide improved operations. The key-value store can include a log engine, a hash engine, a sorting engine, and a garbage collection manager. The features of the key-value store can be configured to reduce the number of I/O operations involving the file system, thereby improving read efficiency, reducing write latency, and reducing write amplification issues inherent in the combined key-value store and file system.

Abstract: A transformer comprises a winding structure which forms a primary side coil, a secondary side coil and first and second wires wound into the coil structure of the transformer. The first wire and second wire define a capacitance between them. The first wire is coupled to a cold point in the primary side and the second wire is coupled to a cold point in the secondary side, thereby this capacitance forming a Y-capacitor between the primary and the secondary sides. This capacitance may for example be used for EMI suppression.

Abstract: An inertia braking test system and a control method is provided, wherein the inertia braking test system is composed of an inertia brake test system, a sensor system and a tested object. An actuating device is connected with the inertia brake control device through a ball stud. The actuation function of the inertia brake control device with two degrees of freedom along the front-and-rear direction and the up-and-down direction of the vehicle is realized. The movable chassis realizes the mobile function of the system. The acceleration sensor can sense the acceleration of the movable chassis. Each force is tested by the first force sensor, the second force sensor and the third force sensor. The displacement data is measured by the first displacement sensor and the second displacement sensor, so that a movable brake system test is achieved.

Abstract: A cleaning brush includes a brush handle, a brush head connected to the brush handle, and a plurality of bristles attached to the surface of the brush head, the cross section of the bristles in at least some areas on the surface of the brush head is polygonal; a cleaning brush kit includes the cleaning brush and a storage box corresponding to the cleaning brush; a side wall of the storage box is provided with an adsorption member, and the adsorption member enables the storage box to be attached to a smooth and hard surface.

Abstract: The present disclosure provides a method and system for selecting an optimal edge computing node in an Internet of vehicle (IoV) environment. The method includes: acquiring and analyzing properties of computing tasks of a vehicle in the IoV environment; acquiring and analyzing properties of different edge computing nodes; computing matching degrees between the properties of the computing tasks and the properties of the nodes; analyzing computing demands of different tasks, and assigning weights to different types of matching degrees; and selecting a node having an optimal sum for products of the matching degrees and the weights as an optimal edge computing node to compute each of the computing tasks of the vehicle.

Abstract: A safe following distance estimation system and an estimation method thereof are provided. The safe following distance estimation system adapted for an autonomous vehicle includes a sensor and a processor. The sensor senses an adjacent vehicle to generate first sensing data, and senses the autonomous vehicle to generate second sensing data. The processor estimates a first friction parameter between wheels of the adjacent vehicle and a pavement according to pavement material data, and estimates a second friction parameter between wheels of the autonomous vehicle and the pavement according to the second sensing data. The processor calculates a safe following distance between the autonomous vehicle and the adjacent vehicle according to the first sensing data, the second sensing data, the first friction parameter, the second friction parameter.

Abstract: The present invention provides an image processing method, an electronic device, and a readable storage medium. The method comprises: obtaining an original image, determining whether the current original image contains a cavity; if the current original image contains a cavity, increasing the frame rate based on the original frame rate; if the current original image does not contain a cavity, maintaining the original frame rate for image capturing. The present invention can automatically adjust the frame rate according to the actual images captured by a capsule endoscope, improving the capture of intestinal images, reducing the probability of missing shots, and achieving the goal of saving power, while enhancing the efficiency of capsule endoscope usage.

Abstract: In an example, a speaker device may include a first transducer and a second transducer. The first transducer may include a first diaphragm, a first magnetic circuit, and a first voice coil disposed in a magnetic gap of the first magnetic circuit to cause vibration of the first diaphragm. The second transducer may include a second diaphragm, a second magnet circuit, and a second voice coil disposed in a magnetic gap of the second magnetic circuit to cause vibration of the second diaphragm. Further, the speaker device may include a magnetic plate having a first surface coupled to the first transducer and a second surface coupled to the second transducer. The first surface is opposite to the second surface.

Abstract: The present invention relates to a margarine substitute loaded with trans-resveratrol/glycoside and a preparation method thereof. The preparation method comprises the following steps: (1) preparing a peanut protein dispersion, adding a transglutaminase thereto, performing a cross-linking reaction under a water bath condition, and heating up to obtain a monolithic gel; continuing to add water to the monolithic gel, shearing the resultant at a high speed, homogenizing at a high pressure, performing ultrasonication, and adjusting pH to obtain a microgel particle dispersion; (2) adding a trans-resveratrol/glycoside to an edible oil in the dark, stirring well, continuing to add the microgel particle dispersion obtained in step (1), and shearing the resultant at a high speed to obtain a high internal-phase Pickering emulsion, i.e. a margarine substitute loaded with trans-resveratrol/glycoside.

Abstract: A flip-chip bonding structure includes a substrate and a chip. A lead of the substrate includes a body, a hollow opening, a bonding island and at least one connecting bridge. The hollow opening is in the body and surrounded by the body. The bonding island is located in the hollow opening such that there is a hollow space in the hollow opening and located between the body and the bonding island. The connecting bridge is located in the hollow space to connect the body and the bonding island. A bump of the chip is bonded to the bonding island by a solder. The solder is restricted on the bonding island and separated from the body by the hollow space so as to avoid the solder from overflowing to the body and avoid the chip from shifting.

Abstract: A safe following distance estimation system and an estimation method thereof are provided. The safe following distance estimation system adapted for an autonomous vehicle includes a sensor and a processor. The sensor senses an adjacent vehicle to generate first sensing data, and senses the autonomous vehicle to generate second sensing data. The processor estimates a first friction parameter between wheels of the adjacent vehicle and a pavement according to pavement material data, and estimates a second friction parameter between wheels of the autonomous vehicle and the pavement according to the second sensing data. The processor calculates a safe following distance between the autonomous vehicle and the adjacent vehicle according to the first sensing data, the second sensing data, the first friction parameter, the second friction parameter.

Abstract: The present application pertains to the technical field of vehicles, and in particular to a vehicle intelligent control system based on a dual independent control system and a corresponding vehicle. The system includes a locomotive terminal and a cloud server. The locomotive terminal includes a first control system and a second control system both being operable independently and capable of exchanging data with each other in real time. The first control system monitors an operation state of the vehicle in real time and transmits at least part of operation state data to the second control system in real time, and controls an operation of the vehicle according to an internal preset instruction and a control instruction received from the second control system.

Abstract: An early-warning system, method, and apparatus for steering of a two-wheeled vehicle, and a corresponding two-wheeled vehicle including a display apparatus. The system includes: a first control system and a second control system both operating independently and exchanging data between each other in real time; the first control system is configured to: monitor a steering state of the two-wheeled vehicle in real time and generate steering state data; generate early-warning state data based on the steering state data; transmit at least part of the steering state data and the early-warning state data to the second control system in real time; and control corresponding components of the two-wheeled vehicle to operate according to control instructions received from the second control system and internal preset instructions; and the second control system is configured to: control a display of the display apparatus based on the steering state data and/or the early-warning information.

Abstract: Disclosed are an audio information transmission system, method, and apparatus, and a corresponding two-wheeled vehicle and helmet. The system includes a media control apparatus and an audio switching apparatus connected to the media control apparatus. The audio switching apparatus is connected to a mobile terminal and the helmet and is configured to receive first audio information transmitted by the mobile terminal and transmit same to the media control apparatus. The media control apparatus is configured to receive and mix second audio information generated by the two-wheeled vehicle with the first audio information, to generate mixed audio information. The audio switching apparatus transmits the mixed audio information to the helmet. In the present application, the audio information transmitted by the mobile terminal and information such as navigation voices, alarms emitted by the two-wheeled vehicle are mixed.

Abstract: The present disclosure provides a method and system for selecting an optimal edge computing node in an Internet of vehicle (IoV) environment. The method includes: acquiring and analyzing properties of computing tasks of a vehicle in the IoV environment; acquiring and analyzing properties of different edge computing nodes; computing matching degrees between the properties of the computing tasks and the properties of the nodes; analyzing computing demands of different tasks, and assigning weights to different types of matching degrees; and selecting a node having an optimal sum for products of the matching degrees and the weights as an optimal edge computing node to compute each of the computing tasks of the vehicle.

Abstract: A method for preparing a Pickering emulsion using a peanut protein isolate includes preparing a peanut protein isolate dispersion liquid from a peanut protein isolate solution as a raw material; preparing a mixed dispersion of protein and polysaccharide using a polysaccharide solution and the peanut protein isolate dispersion; adding transglutaminase to the mixed dispersion of protein and polysaccharide, preparing a monolithic gel by cross-linking reaction; preparing a microgel particle dispersion by using the monolithic gel as a raw material; and further adding the microgel particle dispersion to an edible oil to obtain a Pickering emulsion. During the preparation process, no inorganic material is added, and the obtained Pickering emulsion has good biosafety and strong biocompatibility. The prepared Pickering emulsion can keep stable at room temperature for 30 days or more, and can be used as a delivery system for fat-soluble and photosensitive active substances.

Abstract: An active driving intervention system and method based on acceleration rate optimization. After acquiring a distance from a vehicle ahead and a velocity of a driving vehicle, an evenly varying optimal acceleration variation when the driving vehicle is rapidly accelerated or rapidly decelerated in a safe condition may be calculated, which can be used to assist an accelerator or a brake in active intervention of a vehicle acceleration and appropriate adjustment of the opening of an accelerator or brake pedal, thereby realizing active intervention on driving operation. The method and system of the present disclosure can achieve the purpose of reducing energy consumption.

Abstract: The present invention relates to systems, compositions, and methods for the synthesis and use of imaging agents, or precursors thereof. An imaging agent precursor may be converted to an imaging agent using the methods described herein. In some cases, the imaging agent is enriched in 18F. In some cases, an imaging agent may be used to image an area of interest in a subject, including, but not limited to, the heart, cardiovascular system, cardiac vessels, brain, and other organs. In some embodiments, methods and compositions for assessing perfusion and innervation mismatch in a portion of a subject are provided.

Abstract: A box cover for a portable airtight box, comprising an upper cover, a lower cover, a sliding plate, a reset spring, a pinching member, a lower cover plate, and a sealing ring, wherein the upper cover is fixedly connected to the lower cover, an accommodating space is formed between the upper cover and the lower cover, and the sliding plate is movably arranged within the accommodating space, wherein the reset spring is disposed between the sliding plate and the lower cover, wherein the sliding plate is capable of moving upward relative to the lower cover, wherein the pinching member is movably arranged on the upper cover, and the pinching member abuts against the sliding plate, wherein the lower cover plate is movably arranged at outer bottom of the lower cover, and the lower cover plate is fixedly connected with the sliding plate.

Abstract: A box cover for a portable airtight box, comprising an upper cover, a lower cover, a sliding plate, a reset spring, a pinching member, a lower cover plate, and a sealing ring, wherein the upper cover is fixedly connected to the lower cover, an accommodating space is formed between the upper cover and the lower cover, and the sliding plate is movably arranged within the accommodating space, wherein the reset spring is disposed between the sliding plate and the lower cover, wherein the sliding plate is capable of moving upward relative to the lower cover, wherein the pinching member is movably arranged on the upper cover, and the pinching member abuts against the sliding plate, wherein the lower cover plate is movably arranged at outer bottom of the lower cover, and the lower cover plate is fixedly connected with the sliding plate.