Abstract: A battery exchange system and a batteries providing method thereof are disclosed. The battery exchange system is configured to perform the method that includes: receiving a request to exchange a target number of batteries; grouping a plurality of batteries in the battery exchange system based on the target number of batteries into a plurality of battery groups; calculating a plurality of scores for the plurality of battery groups based on a plurality of weights and a plurality of characteristic parameters; and selecting an optimal battery group with the optimal score among the plurality of battery groups to provide the target number of batteries based on the plurality of scores. In this way, issues caused by improper battery selection can be effectively improved.

Abstract: The disclosure describes a method, a device, and a system for processing transmission line pulse data. In the method, the component characteristic of a protection component is determined. A voltage-current characteristic generated by applying transmission pulses to the protection component is analyzed based on the transmission line pulse data of the protection component. Based on the design window such as an operation voltage value, a breakdown voltage value, and a required current capability, a corresponding visual graph is generated to determine the characteristic, advantages, and disadvantages of the protection component more accurately.

Abstract: A dropper seatpost includes an outer tube, an inner tube disposed movably in the outer tube, and a pneumatic and hydraulic cylinder disposed between the inner and outer tubes and having an upper oil chamber, a lower oil chamber, and an air chamber. When the pneumatic and hydraulic cylinder is opened, the upper and lower oil chambers communicate with each other. When the pneumatic and hydraulic cylinder is closed, the upper and lower oil chambers do not communicate with each other. A floating piston is disposed between the air chamber and the lower oil chamber. When an oil is extracted from or injected into the upper oil chamber, or the oil is extracted from or injected into the lower oil chamber, the floating piston is moved toward or away from the bottom end of the pneumatic and hydraulic cylinder, thereby adjusting a maximum upward stroke of the inner tube.

Abstract: A heterojunction bipolar transistor device includes a substrate, a metallic sub-collector layer, a collector layer, a base layer, an emitter layer, a base electrode, and a plurality of emitter strips. The metallic sub-collector layer is formed over the substrate. The collector layer is formed over the metallic sub-collector layer. The base layer is formed over the collector layer. The emitter layer is formed over the base layer. The base electrode is formed over the base layer and includes a plurality of base fingers. The plurality of emitter strips are formed over the emitter layer and are arranged alternately with the plurality of base fingers.

Abstract: A dropper seatpost includes an outer tube, an inner tube disposed movably upward and downward in the outer tube, and a pneumatic and hydraulic cylinder disposed in the outer tube. When the pneumatic and hydraulic cylinder is opened, the inner tube is moved upward and downward relative to the outer tube, and when the pneumatic and hydraulic cylinder is closed, the inner tube is unable to be moved upward and downward relative to the outer tube. A stroke adjustment assembly includes a floating piston and an oil guide pipe disposed in the inner tube and having a bottom end inserted into the pneumatic and hydraulic cylinder. When an oil is output from the oil guide pipe or flows back into the oil guide pipe, the floating piston is moved according to an oil volume, thereby adjusting a maximum upward stroke of the inner tube.

Abstract: A method for promoting establishment of associated plants in a restored wetland is provided, relating to a method for restoring associated plants in a wetland. The method includes: step 1, establishing a target; step 2, preparing seedlings; step 3, constructing micro-habitat; step 4, planting the seedlings; step 5, managing water; step 6, investigating and monitoring; and step 7, removing isolation plates.

Abstract: A dropper seatpost includes an outer tube and an inner tube disposed in the outer tube and having a first oil chamber and a second oil chamber connected to the first oil chamber. A fluid chamber is provided between the top and bottom ends of the inner tube. A pressure adjustment member is disposed in the first oil chamber to push the oil from the first oil chamber to the second oil chamber. A floating piston is disposed between the second oil chamber and the fluid chamber and pushed by the oil stored in the second oil chamber to compress the high-pressure fluid stored in the fluid chamber. Thus, the present invention allows a user to conveniently adjust pressure of the high-pressure fluid. The arrangement of the first and second oil chambers does not significantly compromise the structural integrity of the inner tube, ensuring that it provides effective support.

Abstract: Disclosed are compositions and methods for detecting nucleic acid, or detecting the presence or absence of a nuclease. Specifically, disclosed herein are nucleic acid-metal nanocluster probes. which comprise a nucleic acid probe with metal nanoclusters associated therewith. These nucleic acid-metal nanocluster probes can be used to detect a variety of cleavage events. and can also be used to detect hybridization to the probe.

Abstract: Methods are provided for identifying progressive colorectal cancer within an individual, and to methods of treating progressive colorectal cancer.

Abstract: A seat angle adjustment device includes a seat tube, a lower clamp, an upper clamp, two nuts, and two bolts. The top end of the seat tube has two through holes and a convex curved surface. The lower clamp has two lower clamping grooves and a concave curved surface abutted against the convex curved surface of the seat tube. The upper clamp has two upper clamping grooves. Two saddle rail clamping grooves are formed between the upper and lower clamping grooves, and each have a position lower than the vertex of the convex curved surface of the seat tube. The nuts and the bolts are screwed to each other. One of them are disposed to the upper clamp and the other of them are disposed in the through holes. Thus, the present invention allows the lifting stroke of a seat to be increased when used with a liftable seatpost.

Abstract: A method for rapid reconstruction of a food source habitat of Leucogeranus leucogeranus by using a returned farmland is provided, including following steps: S1, selecting degraded farmland plots; S2, constructing a connected plot network; S3, improving local soil habitat elements; S4, coating water chestnut bulbs; S5, cultivating the water chestnut bulbs; and S6, regulating and controlling and managing a hydrological environment.

Abstract: A wire control device, which is disposed on a handlebar of a bicycle, includes a main body, a bearing and a handle assembly. The main body includes a bearing fixing seat having an annular inner wall. The bearing is disposed in the bearing fixing seat and includes inner and outer races. The outer race of the bearing is in contact with the annular inner wall of the bearing fixing seat. The handle assembly is rotatably disposed on the main body and has a rotary axle. The inner race of the bearing is sleeved onto and in contact with the rotary axle.

Abstract: A method for retrieving information about similar medical devices is provided, which includes the following steps: obtaining a first technical context of a specific medical device; utilizing a first machine-learning model to extract one or more technical items of the specific medical device based on technical content of the first technical context; utilizing the first machine-learning model to generate candidate medical devices using the technical items; searching a database for device information about the candidate medical devices; retrieving summary files of the candidate medical devices from the database based on the device information; utilizing the first machine-learning model to infer a second technical context of each candidate medical device; and determining a most similar medical device for the specific medical device according to a similarity score for each candidate medical device calculated from the second technical context and the first technical context using a second machine-learning model.

Abstract: Disclosed herein is an AI-assisted screening method and model that capable of automatically extracting prominent intrabeat dynamic patterns associated with HFpEF from apical 4-chamber (A4C) view images. The method comprises steps of: (a) segmenting the plurality of A4C view images to produce a plurality of segmented images; (b) extracting a plurality of features from each segmented A4C view images of step (a) to produce a plurality of linear waveforms; and (c) training the plurality of linear waveforms of step (b) with the diagnosis of the subjects, thereby establishing the model. Also herein is a method for identifying and treating a subject having HFpEF by providing a medicament to the subject having HFpEF identified by the present model.

Abstract: A magnetic particle imaging (MPI) device based on an asymmetric bilateral structure includes a fixed section and a movable section. The fixed section includes a pair of magnetic field generation coils, and the magnetic field generation coils are configured to generate a uniform and variable magnetic field and drive a field-free point (FFP) to move along a Z-axis direction. The movable section includes a permanent magnet, excitation coils and a reception coil. The permanent magnet is configured to cooperate with the magnetic field generation coils to generate the FFP. The excitation coils are configured to move the FFP on a two-dimensional plane and excite magnetic particles to generate a nonlinear response signal. The reception coil is configured to receive an MPI signal. The MPI device is simple in structure and convenient to operate, and can perform targeted local imaging or covered overall imaging on the target object.

Abstract: An audio signal modulation and amplification circuit includes a common-mode electric potential controller, a carrier generator, and channel circuits. The common-mode electric potential controller is configured to generate one or more first common-mode electric potentials and second common-mode electric potentials. The carrier generator is adapted to receive the first common-mode electric potential to generate a carrier signal. Each of the channel circuits includes a filter, a comparison circuit, and a driving circuit. The filter is adapted to filter an input signal and generate a filtered signal based on a corresponding one of the second common-mode electric potentials. The comparison circuit is configured to compare the potential of the carrier signal with the potential of the filtered signal to generate a pulse-width modulation signal. The driving circuit is configured to be turned on or off in response to the pulse-width modulation signal to output a load driving signal.

Abstract: A method for selecting an application and associated operational guidance to utilize on a mobile device is disclosed. In one embodiment, such a method identifies a selected environment of interest. Within the selected environment, the method identifies one or more applications that are commonly utilized by users within the selected environment and documents the one or more applications. The method detects physical entry of a particular user into the selected environment and, in response to detecting the entry, automatically notifies the particular user of the one or more applications that are commonly utilized within the selected environment. In certain embodiments, the method enables the user to quickly launch the one or more applications and/or provides operational guidance to the user with regard to using the one or more applications. A corresponding system and computer program product are also disclosed.

Abstract: A method of detecting and responding to a visitor to a smart home environment via an electronic greeting system of the smart home environment, including determining that a visitor is approaching an entryway of the smart home environment; initiating a facial recognition operation while the visitor is approaching the entryway; initiating an observation window in response to the determination that a visitor is approaching the entryway; obtaining context information from one or more sensors of the smart home environment during the observation window; and at the end of the time window, initiating a response to the detected approach of the visitor based on the context information and/or an outcome of the facial recognition operation.

Abstract: A pneumatic-hydraulic control device includes a piston seat mounted in a cylinder, a piston pin disposed in the piston seat and having an axial air channel, and an acting assembly. When the piston pin is closed, hydraulic oil cannot flow between the piston seat and the piston pin, so that the cylinder cannot be moved. When the piston pin is opened, hydraulic oil flows between the piston seat and the piston pin, so that the cylinder can be moved. The acting assembly includes a sleeve tube connected with the piston seat and an acting member connected with the piston pin and inserted in the sleeve tube to form an exhaust channel. The exhaust channel communicates with the axial air channel to eliminate negative pressure generated between the piston pin and the piston seat when the piston pin is pulled down, thereby reducing a pull-down resistance of the piston pin.

Abstract: A liftable seatpost includes an outer tube, an inner tube, and a bushing. A protrusion is provided at the outer surface of the inner tube. The bushing is disposed between the inner and outer tubes and includes an upper sleeve and a lower sleeve. The upper sleeve has an upper baffle ring with a first engaging portion. The lower sleeve has a lower baffle ring with a second engaging portion engaged with the first engaging portion of the upper sleeve. The edges of the upper and lower sleeves are abutted against each other, and the outer surface of the upper baffle ring is flushed with the outer surface of the lower baffle ring. Thus, the position corresponding to the bushing will not protrude too much and affect the appearance, and the stress transmitted from the protrusion of the inner tube to the upper sleeve can be effectively distributed.