Abstract: A rolling bearing combined fault diagnosis method based on a multi-domain feature construction is provided, including: collecting vibration signals of rolling bearings, extracting time-domain and frequency-domain features of fault-sensitive vibration signals of the rolling bearings, and obtaining an in-domain feature set; performing an improved empirical mode decomposition on the vibration signals of the rolling bearings to obtain time-frequency features; constructing a multi-domain fault sample set based on the in-domain feature set and the time-frequency features; performing a fault mechanism analysis on the multi-domain fault sample set to obtain modulation features under each single fault; carrying out a feature engineering on the time-domain and frequency-domain features, and screening out relevant features, redundant features and irrelevant features; performing an unsupervised hierarchical clustering on test set fault samples, and then inputting the test set fault samples into a KNN model for a classifi

Abstract: The present disclosure discloses a method for collaboratively controlling a multi-channel braking system of a mine hoist, including obtaining the abrasion loss of the brake shoe by detecting position information of the brake shoe of each of disc brakes in real time, dividing abrasion loss levels by determining different abrasion degrees of the brake shoe, formulating three braking force distributing modes: an average distribution, a proportional distribution, and an index distribution according to the abrasion loss levels, thereby dynamically adjusting a set braking pressure of each of the disc brakes, tracking and controlling the set braking pressure through the disc brakes by adopting a pressure closed-loop control method by utilizing a pressure signal feedback from an oil pressure sensor, implementing a collaborative braking control of the multi-channel braking system of the mine hoist based on the abrasion loss of the brake shoe.

Abstract: In one instance, disclosed herein is a computer-implemented method for monitoring an undercarriage of a track-type machine, the computer-implemented method comprising: accessing a reduced order model (ROM) corresponding to the track-type machine; receiving an estimated wear level of at least one undercarriage component of a track-type machine and machine signal data generated by the track-type machine; generating an updated estimated wear level of the at least one undercarriage component using the estimated wear level, the machine signal data, and the ROM; and comparing the updated estimated wear level of the at least one undercarriage component to a wear level threshold.

Abstract: Disclosed in the present disclosure are a resource allocation method and apparatus, an electronic device, and a storage medium, which relates to the field of computer technology. The method includes: determining one or more unallocated compute express link (CXL) memory logical blocks in a CXL memory resource pool in response to determining that a remaining memory capacity of a first host is less than a remaining memory capacity threshold of the first host; selecting a target CXL memory logical block from among the one or more unallocated CXL memory logical blocks in the CXL memory resource pool; and allocating a memory resource corresponding to the target CXL memory logical block to the first host via a CXL switch. This solves the problem of complex management of the CXL memory resource pool.

Abstract: A method for preparing a flow path device includes a first process and a second process. The flow path device includes a flow path portion and a plurality of holes each being continuous with the flow path portion. The flow path portion includes a first flow path and a plurality of second flow paths. In the first process, a liquid feeder is connected to a first inlet hole, and a liquid suction unit is connected to a second outlet hole. In the second process, a liquid is sucked, with the liquid suction unit, from the first flow path through the plurality of second flow paths and the second outlet hole at a first suction rate being lower than or equal to a first feed rate while the liquid is being fed, with the liquid feeder, toward the first flow path through the first inlet hole at the first feed rate.

Abstract: The present disclosure provides a detection and analysis method for rapid delineation of aging stages of styrene-butadiene-styrene (SBS) modified asphalt, including the following steps: performing a Fourier transform infrared spectroscopy (FTIR) test on unaged SBS-modified asphalt samples to obtain a copolymer index of IB0/S0 and neat asphalt functional group indexes, including the SI0, IB, aI0, ARI0, and CI0; performing the FTIR test on the aged SBS-modified asphalt samples to obtain an actual index of IB/S, SI, IB, aI, ARI, and CI; and delineating three aging stages of SBS-modified asphalt, including a polymer swelling stage, a polymer degradation stage and a component imbalance stage according to changes of functional group indexes. According to the present disclosure, the actual aging stages of the SBS-modified asphalt can be determined rapidly and accurately, providing a reasonable basis for the decision on pavement maintenance timing and mode.

Abstract: An aluminum alloy member (1) for forming a fluoride coating thereon is intended for use as a component of a semiconductor production apparatus. The composition of the aluminum alloy member includes Mg: 1.2 mass % to 4.5 mass % and Si: 0.2 mass % to 1.0 mass %, with the excess Mg concentration being 0.5 mass % or more.

Abstract: An environment detection apparatus is provided. In one embodiment, the detection apparatus comprises: a first sensing device, a second sensing device in fluid communication with the first sensing device and a spectrum analyzer electrically connected to the first sensing device and the second sensing device. The first sensing device includes a pair of first electrodes configured to provide a first alternating current signal directly to a gas flowing into the first sensing device. The second sensing device includes a first filter configured to capture a solid in the gas flowing into the second sensing device and a pair of second electrodes configured to provide a second alternating current signal directly to the first filter with the solid captured by the first filter.

Abstract: An electrostatic collecting device including a collecting unit facing a surface of an object to be cleaned, electrostatically collecting objects to be collected existing on the surface of the object to be cleaned, and having a rotating body and a brush provided on a surface of the rotating body; a charging unit having an insulating member rubbing against the collecting unit and charging the collecting unit by the insulating member; and a charge removing unit contacting a surface of the charging unit, electrically grounded to remove charge from the surface of the charging unit, and having a conductive brush, charge removing needle, or conductive sheet contacting the charging unit.

Abstract: An iodine gas detection system is configured to detect iodine atoms, and the system includes a housing having an aperture, an iodine sensitive sensor located within the housing and configured to directly interact with the iodine atoms that enter through the aperture within the housing, a processor located within the housing and configured to process data collected from the iodine sensitive sensor, and a memory located within the housing and configured to store a result generated by the processor. The iodine sensitive sensor includes plural layers of reduced graphene oxide, rGO, disposed substantially parallel to each other, Ag nanoparticles distributed among the plural layers of rGO, and a surfactant polymer selected to be a surfactant and distributed among the plural layers of rGO.

Abstract: Provided are an air conditioner for performing a cooling operation according to a cooling capacity selected by a user, and a method of controlling the air conditioner. The air conditioner includes: a compressor, at least one memory storing one or more instructions, and at least one processor, comprising processing circuitry, individually and/or collectively, configured to execute the one or more instructions stored in the memory and to: receive an input for selecting one of a plurality of cooling capacities of the air conditioner, as a maximum cooling capacity capable of being output by the air conditioner, obtain a frequency corresponding to the maximum cooling capacity, of the compressor, in response to a determination to output the cooling capacity of the air conditioner as the maximum cooling capacity, based on a desired temperature set in the air conditioner and an indoor temperature, and, based on the obtained frequency, control the compressor.

Abstract: The present disclosure relates to the field of display technologies, and discloses a display panel, a preparation method thereof, and a display device; the display panel has a display area and a non-display area adjacent to the display area, and the display panel includes an array substrate, an opposite substrate, and a retaining wall structure; a bonding electrode is arranged on the array substrate, and located in the non-display area; the opposite substrate and the array substrate are arranged opposite to each other; the retaining wall structure is arranged on the side of the array substrate close to the opposite substrate, and at least part of the retaining wall structure is located between the display area and the bonding electrode.

Abstract: An electromechanical brake and a locking device for the same are disclosed. The locking device includes (i) a bracket, (ii) a rotating lever that has an operating end for being interlocked with a ratchet of the electromechanical brake, the rotating lever being connected to the bracket through a rotating shaft, such that the rotating lever is capable of rotating between an idle position and a working position with the rotating shaft as a rotation axis, (iii) an electromagnet, the electromagnet acting on an action end of the rotating lever, thereby causing the rotating lever to rotate from the idle position to the working position, and (iv) a reset member, the reset member causing the rotating lever to return to the idle position from the working position. The locking device is configured such that a movement distance of the operating end of the rotating lever is more than 3 times a movement distance of the action end during movement of the rotating lever from the idle position to the working position.

Abstract: The present invention provides a memory combination lock including a lock base, a set knob, a stopper, a set of dial units, a spring, a spindle, and an upper case. The set of dial units is composed of several rotary disks and several lock bushings. Each of the lock bushings is respectively inserted inside of the rotary disks. Each of the lock bushing has a big through hole and a small through hole with an opening disposed therein. A corresponding groove which position is responding to one of the ten digits (0˜9) on each of the rotary discs respectively is designed on the outer wall surface of ten different types of the lock bushings. Therefore, a set of inner code can be formed by different types of the locking bushings inside of the combination lock and the code can be used to retrieve the password in case of forgetting.

Abstract: Hoses include an inner tube, a reinforcement layer disposed outwardly from the inner tube, and a cover layer disposed outwardly from the reinforcement layer, where the cover layer and/or the inner tube include(s) a composition having a sustainable content. The composition includes one or more ethylene derived sustainable polymers. The one or more ethylene derived sustainable polymers is formed of ethylene monomer derived from one or more renewable sources. The one or more ethylene derived sustainable polymers may be one or more of PVC sustainable polymer, EPDM sustainable polymer and EPR sustainable polymer.

Abstract: The patent application discloses a degradable downhole tool member for hydrocarbon resource recovery. The downhole tool member comprises a shaped body comprising a degradable polymer matrix, wherein the downhole tool member, when held in downhole fluid at about 80° C., has an initial mass loss about 14% for a holding period of about 2 days in a pressure holding test.

Abstract: A peristaltic pump device includes a casing, a flexible tube, and a roller module. The flexible tube is disposed within an accommodating space of the casing and has a curved tube portion. The roller module is rotatably disposed within the accommodating space and surrounded by the flexible tube and includes a holder structure movable relative to the curved tube portion, a roller mechanism rotatably mounted on the holder structure, and an actuating rod. The actuating rod is movable upward and downward relative to the curved tube portion. A protruding structure protrudes laterally from at least one of the holder structure and the actuating rod. When the actuating rod moves downward, the protruding structure interferes with another of the holder structure and the actuating rod for moving the holder structure to make the roller mechanism compress the curved tube portion by a lateral, rotational, or tilted movement of the holder structure.

Abstract: Methods and materials for improving the hardness of a metallic photoresist used in EUV photolithography are disclosed. Multiple different additive types are described for use with the metallic photoresist. The additives can be applied to the photoresist as part of existing solutions, or applied as an ingredient in a treatment solution during various steps for applying, patterning, and developing the metallic photoresist. The resulting photoresist layer has increased hardness and higher EUV light sensitivity, which permits a reduced radiation dosage.

Abstract: An oscillating fan control system includes a holder, a stepper motor, a rotating shaft, a shaft encoder, and a controller. The controller is electrically coupled to the stepper motor and the shaft encoder. The shaft encoder can generate a status signal corresponding to a rotation path of the rotating shaft. The controller includes a reversing circuit and a driving circuit. The reversing circuit can generate a reversing signal for the stepper motor in response to the status signal indicating a deviation of the rotating shaft from a midpoint position of the rotation path. The driving circuit can generate pulse signals for the stepper motor according to a subdivision parameter and an oscillation angle. A method for controlling an oscillating fan is also disclosed.

Abstract: Systems and methods for generating dynamic quick actions for an application in a web browser. The dynamic quick actions correspond to various functions of an application accessible via a web browser sidebar interface. When a hover event is detected in association with an icon of the application, a quick-actions card is generated that includes quick actions of the application from which the user can select. For instance, a selection of a quick action triggers the web browser to execute an action that causes the application function to be performed. Thus, application functions are able to be surfaced and controlled via a single input device selection (e.g., a mouse click).