Abstract: In some embodiments, a method sends a set of first requests for a set of first segments of a video in a playback session. A first protocol from a plurality of protocols is specified in at least one of the set of first requests. The set of first segments is received. The method determines whether to switch from using the first protocol to a second protocol in the playback session based on receiving the set of first segments. When switching to the second protocol, the method sends a second request in the playback session, wherein the second request indicates the second protocol is to be used to send a second segment of the video.

Abstract: The present disclosure relates to a fractional frequency divider, a radio frequency transceiver, and a method of configuring a phase delay in the fractional frequency divider. The fractional frequency divider comprises a counter, a multiplexer, and a delay module. The method is applicable to the fractional frequency divider. The radio frequency transceiver comprises the fractional frequency divider, and the fractional frequency divider adopts the method. According to the aforesaid technical solution, the present disclosure has advantages as follows: the embodiments of the present disclosure can minimize the timing inaccuracy and suppress the output jitter and output spurs; and the embodiments of the present disclosure can effectively extend the operating frequency range of the fractional frequency divider.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for performing neural architecture search for machine learning models. In one aspect, a method comprises receiving training data for a machine learning, generating a plurality of candidate neural networks for performing the machine learning task, wherein each candidate neural network comprises a plurality of instances of a layer block composed of a plurality of layers, for each candidate neural network, selecting a respective type for each of the plurality of layers from a set of layer types that comprises, training the candidate neural network and evaluating performance scores for the trained candidate neural networks as applied to the machine learning task, and determining a final neural network for performing the machine learning task based at least on the performance scores for the candidate neural networks.

Abstract: The present application relates to a pregabalin sustained release composition, comprising: (a) an active ingredient; (b) a matrix-forming agent; (c) a swelling agent; (d) a gelling agent; and optionally a filler. The pregabalin sustained release composition provided in the present application can rapidly swell in volume when exposed to aqueous medium until exceeding the dimeter of human gastric pyloric (13 mm). It thereby prolongs the gastric emptying time to increase the retention time of pregabalin in the stomach and enhances absorption of pregabalin in the small intestine and ascending colon. Moreover, the pregabalin sustained release composition provided herein achieves a sustained release for 24 h, which allows QD (once a day) administration, reduces administration number, and improves patient compliance.

Abstract: The present invention relates to the field of biomedicine, particularly to double-stranded RNA molecules targeting CKIP-1 and uses thereof, particularly to use of the double-stranded RNA molecules for the treatment of inflammatory diseases such as arthritis, particularly rheumatoid arthritis.

Abstract: A P2X3 and/or P2X2/3 receptor antagonist of formula (I), a pharmaceutical composition comprising the same, and a use thereof in preparing a drug for preventing or treating a disease mediated by the P2X3 and/or P2X2/3 receptor antagonist.

Abstract: The present disclosure relates to a fractional frequency divider, a radio frequency transceiver, and a method of configuring a phase delay in the fractional frequency divider. The fractional frequency divider comprises a counter, a multiplexer, and a delay module. The method is applicable to the fractional frequency divider. The radio frequency transceiver comprises the fractional frequency divider, and the fractional frequency divider adopts the method. According to the aforesaid technical solution, the present disclosure has advantages as follows: the embodiments of the present disclosure can minimize the timing inaccuracy and suppress the output jitter and output spurs; and the embodiments of the present disclosure can effectively extend the operating frequency range of the fractional frequency divider.

Abstract: In some embodiments, a method sends a set of requests for a video using a first protocol. The first protocol is selected from a plurality of protocols available for use in a playback session for the video. The method compares a first performance of the first protocol and a second performance of a second protocol and determines whether to switch from using the first protocol to the second protocol in the playback session based on the comparing.

Abstract: In some embodiments, after receiving a first set of video segments of a video, a method starts a first computing instance and receives a video segment of the video using the first computing instance. A measurement is calculated based on receiving the video segment. The method uses the measurement to determine whether the first computing instance should continue to be used to receive video segments in the video or should be terminated to not receive video segments in the video.

Abstract: In some embodiments, a method receives a plurality of video segments of a video using a plurality of computing instances and measures data received for the plurality of computing instances during a time window. A video segment for a computing instance in the plurality of computing instances is not fully downloaded during the time window. The method calculates a video delivery metric for the plurality of computing instances based on the data received and calculates an evaluation measurement based on the video delivery metric. The evaluation measurement is used to control an addition or a termination of a computing instance.

Abstract: The present disclosure provides a multi modulus frequency divider and an electronic device. The duty cycle adjusting circuit in the multi modulus frequency divider is configured to generate a second output clock signal according to a first output clock signal and an input modulus signal received by one or more frequency division units, the frequency of the second output clock signal is the same as that of the first output clock signal, and the duty cycle of the second output clock signal is different from that of the first output clock signal. The duty cycle of the clock signal output by the multi modulus frequency divider provided in the present disclosure is generally closer to 50%.

Abstract: In some embodiments, a method sends a set of requests for a video using a first protocol. The first protocol is selected from a plurality of protocols available for use in a playback session for the video. The method compares a first performance of the first protocol and a second performance of a second protocol and determines whether to switch from using the first protocol to the second protocol in the playback session based on the comparing.

Abstract: In some embodiments, a method receives a plurality of video segments of a video using a plurality of computing instances and measures data received for the plurality of computing instances during a time window. A video segment for a computing instance in the plurality of computing instances is not fully downloaded during the time window. The method calculates a video delivery metric for the plurality of computing instances based on the data received and calculates an evaluation measurement based on the video delivery metric. The evaluation measurement is used to control an addition or a termination of a computing instance.

Abstract: The invention provides a safety injector needle. The safety injector needle includes a needle seat, an injection needle axially fixedly connected to the needle seat, and a trigger protection assembly assembled on the needle seat, the needle seat includes an assembly part and a fixing part; the trigger protection assembly includes a case, a trigger mechanism and an elastic element; the case is arranged in a hollow tube shape; the trigger mechanism includes a first trigger mechanism and a second trigger mechanism. The first trigger mechanism can slide along the extension direction of the case under the action of the elastic element.; the second trigger mechanism can slide along the extension direction of the needle seat under the action of the elastic element, so that the injection needle is completely contained between the trigger mechanism and the needle seat after the safety injector needle is used.

Abstract: In some embodiments, a method receives one or more segments for content from a first content delivery network during a playback session for the content. The content includes a number of segments. The method evaluates buffer occupancy of a buffer configured to store segments of the content for playback and evaluates a number of times of a failure to download a segment for the content. The buffer occupancy is compared to a first threshold and the number of times of the failure to a second threshold. The method determines a switch from the first content delivery network to a second content delivery network during the playback session based on the comparing.

Abstract: A manufacturing method, Printed Circuit Board (PCB) panel, and a PCB are disclosed. The method includes forming a cavity in a PCB that is in a PCB panel that includes a frame and stays, mounting an electronic component, heating the PCB panel, and cutting the stays. The PCB panel includes a frame body and a PCB coupled to the frame body via stays. The PCB includes a cavity. A first cavity stay is located near the cavity. Extended lines extend from the cavity, and the cavity stay extends at least between the extended lines. The PCB includes a cavity and a connection point from a cavity stay near the cavity.

Abstract: In some embodiments, a method receives one or more segments for content from a first content delivery network during a playback session for the content. The content includes a number of segments. The method evaluates buffer occupancy of a buffer configured to store segments of the content for playback and evaluates a number of times of a failure to download a segment for the content. The buffer occupancy is compared to a first threshold and the number of times of the failure to a second threshold. The method determines a switch from the first content delivery network to a second content delivery network during the playback session based on the comparing.

Abstract: A system and method for dyeing and/or lightening keratin-containing fibers, as well as a lightening composition for use in such a system and method are described, which are able to provide a high levels of lift while avoiding irritation and/or soothing the scalp. The system and method include a first composition, which may be a lightening composition. That composition includes (i) at least two alkali components for lightening keratin-containing fibers, wherein one of the at least two alkali components comprises sodium metasilicate and/or a metasilicate salt, and the composition comprises about 0.1 to about 10 weight percent of the at least two alkali components; and (ii) an arginine compound, wherein the arginine compound is present in an amount that would be effective to reduce irritation to a surface of a mammal having keratin-containing fibers. The system and method also include an oxidizing agent composition comprising an oxidizing agent, wherein the system has a pH of at least about 9 to about 12.

Abstract: A one step hair color and relaxer system comprising: an alkalizing agent in the range between about 0.1% to about 8%, based upon the total concentration of the hair color and relaxer system; a hair dye; and an oxidizing agent in the range between about 0.1% to about 6%, based upon the total concentration of the hair color and relaxer system; wherein the pH of the hair color and relaxer system is in the range between about 9 to about 14.

Abstract: The present invention discloses preservative-free toothpaste for children. The composition forming the preservative-free toothpaste for children consists of vitamin, calcium glycerophosphate, xylitol, sorbitol, polyethylene glycol, cellulose, hydroxypropyl guar gum, sodium lauryl sulfate, flavors and deionized water. The composition contains, by weight percentage, 0.01-0.06% of vitamin, 0.1-0.5% calcium glycerophosphate and 0.1-1% of xylitol. The vitamin comprises both vitamin E and vitamin C. In the present invention, vitamin E, vitamin C, calcium glycerophosphate and xylitol are combined in a certain proportion. The vitamin nourishes the children's tender gums. The calcium glycerophosphate provides calcium supplementation to the teeth. The xylitol has a reduced content of sugar, which prevents tooth decay and strengthens the teeth.