Abstract: An air conditioner outdoor unit includes a power supply circuit, a load circuit and a main controller. The power supply circuit includes a resistor and a relay connected in parallel. The load circuit includes a plurality of sub-load circuits coupled to an output of the power supply circuit. The main controller is coupled to the relay, and in a case where the air conditioner outdoor unit is in a standby state, the main controller is configured to control the relay to turn off; and in a case where the air conditioner outdoor unit is in a working state, the main controller is configured to control the relay to turn on.

Abstract: This application discloses a route selection method and a related device. A control entity determines first metric information of a first segment routing (SR) path, generates a first border gateway protocol (BGP) update message including the first metric information, and sends the first BGP update message to an ingress node of the first SR path, where the first metric information represents quality of the first SR path, the first metric information is used for route selection on a plurality of paths, each of the plurality of paths has a same IP prefix of a destination node, and the plurality of paths include the first SR path. According to the method, the control entity can send, to the ingress node of the SR path by using the BGP update message, the metric information that represents the quality of the SR path.

Abstract: The present disclosure presents compositions and methods for improving cognitive function and/or alertness of a human. In one embodiment, a method comprises: administering to the human in need of an improved condition an edible composition, wherein the composition comprises: caffeine and/or a derivative thereof; and a polyphenol, wherein the composition has a weight ratio of the total polyphenol to the total caffeine from about 1:10 to about 10:1. In some embodiments, the polyphenol is a chlorogenic acid (CGA).

Abstract: A stereo signal encoding method includes: obtaining a residual signal encoding parameter of a current frame of a stereo signal based on downmixed signal energy and residual signal energy of each of M sub-bands of the current frame, where the residual signal encoding parameter indicates whether to encode residual signals of the M sub-bands; determining whether to encode the residual signals based on the residual signal encoding parameter; and encoding the residual signals when it is determined that the residual signals need to be encoded.

Abstract: A flow table aging method, a device, a computer apparatus and a storage medium are provided.

Abstract: The present application discloses stretched films comprising regioselectively substituted cellulose esters and a component A Formula (I), Formula (II), wherein rings A, B, C, R1, R2, R5, R6, R8, R9, m; n; and k are defined herein. The films exhibit negative birefringence and improved wavelength dispersion.

Abstract: The present application provides a method and a device for encryption of a video stream, a communication equipment, and a storage media. The method for encryption of a video stream includes: acquiring a video stream, encrypting a data part of an I frame by using a first encryption algorithm to obtain a first encrypted data, and encrypting an encryption key of the first encrypted data by using a second encryption algorithm to obtain a second encrypted data, and storing the second encrypted data in a frame header of the I frame to obtain an encrypted I frame.

Abstract: The present disclosure provides a method for optimizing transformation of automation equipment in a power distribution network based on reliability, including determining installation states of respective components in the power distribution network and operation criterions for fault isolation, load transfer and fault recovery after a fault occurred in a feeder segment; determining a target function which is a target function for minimizing a total transformation cost of the power distribution network; determining constraint conditions including reliability constraints; establishing an optimization model for evaluating the reliability of the power distribution network based on the reliability constraints in accordance with the target function and the constraints; and solving the established optimization model for evaluating the reliability of the power distribution network based on the reliability constraints to obtain optimal solutions as optimization results of the automation transformation state of the cir

Abstract: A multi-branch fixed offshore photovoltaic (PV) structure with automatic pitch adjustment includes a fixed base, a multi-branch integrated tower, and a PV device. The fixed base includes an upper section, a middle section and a lower section arranged in the seabed. The upper section is above the sea level and connected to the multi-branch integrated tower. The multi-branch integrated tower includes a main tower body and multiple pitch-regulating frames rotatably connected to the main tower body. The main tower body is provided with a control and energy storage system to drive the pitch-regulating frames to rotate. The PV device is fixed to the pitch-regulating frames. The main body is provided with a sunlight monitoring system to monitor solar orientation and inclination angle of a sunlight relative to the PV device. The sunlight monitoring system is connected to the control and energy storage system.

Abstract: Example random access methods and apparatus are described. In one example, the network device obtains a first random access preamble length of a first terminal device and a second random access preamble length of a second terminal device. The network device determines a first random access parameter of the first terminal device and a second random access parameter of the second terminal device based on the first random access preamble length and the second random access preamble length. The network device sends the first random access parameter and the second random access parameter to the first terminal device and the second terminal device respectively.

Abstract: The present disclosure discloses an image encryption method based on multi-scale compressed sensing and a Markov model. According to the difference in information carried by low-frequency coefficients and high-frequency coefficients of an image, different sampling rates are set for the low-frequency coefficients and the high-frequency coefficients of the image, which can effectively improve the reconstruction quality of a decrypted image. The decrypted image obtained by the present disclosure has higher quality than the decrypted image generated by the existing scheme, and a better visual effect and more complete original image information can be obtained.

Abstract: A display substrate includes: a base substrate including a display area and a frame area; pixel islands arranged in an array in the display area, each pixel island having sub-pixels arranged in an array; data lines extending in a column direction and arranged along a row direction in the display area, the data lines being electrically connected to the sub-pixels; operational amplifiers in the frame area, each operational amplifier being electrically connected to a column of sub-pixels through the data line(s); and reusing circuits in the frame area, each reusing circuit being connected to at least two operational amplifiers, and sub-pixels electrically connected to each reusing circuit through data lines being in at least two columns.

Abstract: A liquid crystal optical device includes a liquid crystal layer, a first orientation layer, a second orientation layer, a first electrode layer, a second electrode layer, a first transparent substrate, and a second transparent substrate. The second electrode layer includes a conductive line and a plurality of leading-out lines. The conductive line includes a first position and a second position; one end of each leading-out line is connected with the conductive line, the other end thereof is suspended. The conductive line has at least one leading-out position; at least a part of the leading-out position is located between the first and second positions, and at least two of the leading-out positions are different from each other; a resistance between each leading-out position and the first position and a distance between at least a part of each leading-out line in a first direction and the first position satisfies a first condition.

Abstract: An early warning method for hot spots of a brake disc includes: acquiring a mixed vibration signal generated when the brake disc is braked; separating the mixed vibration signal to obtain multiple separated vibration signals; and screening the multiple separated vibration signals to obtain hot spot determination signals. The hot spot determination signals are configured to determine formation of the hot spots on the brake disc. By separating the mixed vibration signal generated when the brake disc is braked, the multiple separated vibration signals can be obtained. Each of the multiple separated vibration signals is screened to obtain the hot spot determination signal that reflect whether the hot spots are formed on the brake disc, and the hot spot early warning result is reliable. The early warning method can effectively improve the accuracy of hot spot early warning for brake discs.

Abstract: The present invention discloses compounds of Formula (I), and pharmaceutically acceptable salts, thereof: which inhibit coronavirus replication activity. The invention further relates to pharmaceutical compositions comprising a compound of Formula (I) or a pharmaceutically acceptable salt thereof, and methods of treating or preventing a coronavirus infection in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of a compound of Formula (I) or a pharmaceutically acceptable salt thereof.

Abstract: The disclosure provides a method, an apparatus, and a storage medium for controlling heating system. The method includes: establishing an objective function and constraints for estimating system parameters of the heating system, in which the heating system includes nodes, pipelines and equivalent branches, the equivalent branch is configured to represent a heating resource or a heating load in the heating system, the system parameters include a resistance coefficient of each of the pipelines and equivalent branches, and a heat dissipation coefficient of each of the pipelines; solving the objective function based on the constraints to obtain the system parameters; modeling the heating system based on the obtained system parameters to obtain control parameters of the heating system; and controlling the heating system based on the control parameters.

Abstract: An IV device assembly may include a lumen forming a fluidic channel within the IV device assembly. The lumen may be fluidically coupled to a vascular access device (VAD) coupler via a funnel coupler, and an IV device assembly coupler at a proximal end of the lumen. The IV device assembly may also include one or more of the following: a collapsible sleeve formed coaxially around a first portion of the lumen and mechanically coupled to the funnel coupler, a patency instrument formed along a second portion of the lumen within the collapsible sleeve and into the VAD coupler, a translation handle that translates the patency instrument out of a distal end of the VAD coupler, and a fixed grip formed around the lumen to maintain a position of the IV device assembly relative to the translation handle.

Abstract: Provided herein are orally consumable compositions comprising caffeine and a plant extract composition and methods of providing a cognitive benefit by administration of the orally consumable compositions.

Abstract: A transient stability assessment method for an electric power system is disclosed. Transient stability tags and steady-state data of the electric power system before a failure occurs are collected from transient stability simulation data. Data sets under different predetermined failures are obtained based on a statistical result of the transient stability tags and a maximum-minimum method. A similarity evaluation index between different predetermined failures is constructed based on a Jaccard distance and a Hausdorff distance. Different predetermined failures are clustered based on a clustering algorithm. A parameters-shared siamese neural network is trained for different predetermined failures in each cluster to obtain a multi-task siamese neural network for the transient stability assessment.