Abstract: The present disclosure discloses a camera lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having refractive power; a second lens having positive refractive power and a convex image-side surface; a third lens having negative refractive power, a convex object-side surface and a concave image-side surface; a fourth lens having negative refractive power; a fifth lens having refractive power and a convex image-side surface; and a sixth lens having refractive power, a convex object-side surface and a concave image-side surface. Half of a maximum field-of-view Semi-FOV of the camera lens assembly and a combined focal length f23 of the second lens and the third lens satisfy: 4.00 mm<tan2(Semi-FOV)*f23<10.00 mm.

Abstract: Dynamic snapshot scheduling techniques are provided using storage system metrics. One method comprises obtaining a schedule for generating snapshots of a portion of a storage system; automatically adjusting snapshot generation parameters in the schedule based on: (i) a current storage pool usage metric, (ii) an input/output metric of at least one storage resource in the portion of the storage system, (iii) a measure of snapshots in a destroying state, and/or (iv) a measure of a number of created snapshots; and initiating a generation of a snapshot of the storage system portion in accordance with the adjusted schedule. A snapshot generation frequency may be increased in response to an increase of: the current storage pool usage metric, the number of snapshots in the destroying state, and/or the number of created snapshots. A snapshot generation frequency may be decreased in response to an increase of the I/O metric of the at least one storage resource.

Abstract: The present invention relates to a method for carbon dioxide capture and concentration by partitioned multistage circulation based on mass transfer-reaction regulation. In the present invention, multiple means such as multistage circulating absorption, intelligent multi-factor regulation, pre-washing and cooling, inter-stage cooling, post-stage washing, slurry cleaning, cooling water waste heat utilization, small-particle-size and high-density spraying, external strengthening field such as a thermal field/ultrasonic field/electric field, and catalysis by composite catalyst are adopted, so that the target for low cost, low energy consumption, stability and high efficiency is realized. The secondary pollutants are effectively inhibited while carbon dioxide is efficiently captured; meanwhile, high-efficiency capture, low-energy desorption, and high-purity concentration of carbon dioxide are implemented.

Abstract: Disclosed is a method and device for automatic detection of vessel draft depth, which processes the image of a vessel's hull and extracts local area image blocks with vessel's water gauge scale separately to improve the pertinence of data processing and reduce the complexity of data processing; and based on a multi-task learning network model, performing data processing on local area image blocks to extract scale characters and waterline position, reducing the computational complexity of the model; finally, based on the relative positions of the scale and waterline, determining the vessel's draft depth, thus achieving automatic acquisition of the vessel's draft depth, this method greatly improves the efficiency of reading the vessel's draft depth.

Abstract: The present disclosure provides a map information acquisition method and a map acquisition apparatus and a non-transitory computer-readable storage medium. The method comprises: acquiring and constructing, by a map acquisition apparatus, map data, and acquiring, by the map acquisition apparatus, shelf identity information of each of shelves, wherein the shelf identity information is in one-to-one correspondence with the shelves, wherein the map acquisition apparatus comprises: a shopping cart component provided with a map construction system and a radio frequency identification reader; and marking, by the map acquisition apparatus, the map data according to each of the shelf identity information, and generating, by the map acquisition apparatus, map information marked with multiple pieces of shelf identity information.

Abstract: The invention relates to an ophthalmic pharmaceutical composition and its preparation methods and applications, wherein the pharmaceutical composition comprises of L-Alanyl-L-Glutamine suspended or dissolved in an isoosmotic solution suitable for human eyes, and has the advantages causing minimal irritation, with high stability and a good safety profile, and which can be used for relieving dry eye disease (DED) symptoms and/or improving and/or treating DED.

Abstract: A battery connection structure includes a plurality of battery units connected in series. At least one battery unit is connected in series to other battery units through a temperature switch; the temperature switch includes a first connection member connected to a first electrode terminal of the battery unit and a second connection member connected to a second electrode terminal of the battery unit; at normal operating temperature, the first connection member and the second connection member are disconnected, and the first connection member and the second connection member are respectively connected to the two electrode terminals of the battery unit; when the temperature is higher than the normal operating temperature, the first connection member and/or the second connection member are/is deformed and disconnected from the corresponding electrode terminal(s) of the battery unit, and the first connection member and the second connection member are connected.

Abstract: Disclosed are a catalyst component and a catalyst for olefin polymerization, and an olefin polymerization method. The catalyst component comprises magnesium, titanium, a halogen and an internal electron donor, wherein the internal electron donor comprises a monocarboxylic acid ester compound and a diether compound, and the molar ratio of the monocarboxylic acid ester compound to the diether compound is (0.0035-0.7):1. By using the catalyst, a polymer having both a high isotactic index and a high melt flow index can be prepared.

Abstract: An electronic device is provided. The electronic device includes a housing, an infrared transmitter, a light guide member, and a decorative sheet. The infrared transmitter and the light guide member are both disposed in the housing. The housing is provided with a through hole, and at least a part of the light guide member is disposed in the through hole. The light guide member has a first end and a second end that are opposite to each other. The first end has a curved surface protruding opposite to the second end. The infrared transmitter is opposite to a light inlet surface, and the infrared transmitter emits infrared light toward the light inlet surface. The second end has a light outlet surface. At least a part of the infrared light incident in the light guide member through the light inlet surface emits on the light outlet surface.

Abstract: The present disclosure provides a commodity positioning method and apparatus, a device and a storage medium. The method comprises: acquiring map information marked with multiple pieces of shelf identity information, wherein the multiple pieces of shelf identity information are in one-to-one correspondence with shelves; acquiring shelf image information corresponding to the shelf identity information; identifying, according to the shelf image information, a commodity corresponding to each of electronic price label apparatuses on a corresponding shelf and a first positional relationship between each of the electronic price label apparatuses and the corresponding shelf; generating location information of each of the commodities according to the first positional relationship and the map information.

Abstract: Disclosed is a recoverable and self-expanding short-frame valve suitable for aortic valve regurgitation, including a tubular frame and valve leaflets. The tubular frame can contract to a delivery configuration or expand to a use configuration in a radial direction; the tubular frame includes a first portion and a second portion integrally formed and coaxially arranged; a waist portion is formed at the junction of the first portion and the second portion when the tubular frame is in the use configuration; and the second portion is divergently arranged in a direction away from the waist portion. According to the present disclosure, the complete recovery of the valve can be realized without affecting the later coronary intervention.

Abstract: The disclosure discloses a zoom lens group. The zoom lens group sequentially includes from an object side to an image side along an optical axis: a first lens group having a negative refractive power, the first lens group including a first lens and a second lens which are sequentially arranged along the optical axis; a second lens group having a positive refractive power, the second lens group including a third lens, a fourth lens and a fifth lens which are sequentially arranged along the optical axis; and a third lens group having a positive refractive power, a separation distance between the first lens group and the second lens group on the optical axis and a separation distance between the second lens group and the third lens group on the optical axis are adjusted, so as to switch the zoom lens group from a wide-angle state to a long-focus state.

Abstract: The present invention relates to the field of elevator braking, in particular to an action state detection method and system for an elevator brake, comprising: acquiring matching pairs of brake linings in the same braking state; constructing normal record data sets based on the matching pairs; grouping the normal record data sets based on braking power corresponding to samples in the normal record data sets to determine a median of elevator running speed corresponding to the samples in each group; dividing the operating state levels of the elevator brake according to the size of the median; constructing a data training set; training a constructed network model to obtain a trained network model; acquiring the operating state levels of an elevator to be detected by the trained network model, evaluating the elevator brake according to the operating state levels, and controlling the elevator.

Abstract: An electronic shelf label positioning system, an electronic shelf label and a guide rail. The electronic shelf label positioning system includes the electronic shelf label, the guide rail, a PDA and a background server. The electronic shelf label includes a main control SoC, a card reader IC, a screen and a power supply device. The main control SoC is configured to control the screen display and to communicate with an AP. The power supply device is configured to supply power to the electronic shelf label. The guide rail includes a guide rail identification area and a label area. The label area is installed with a plurality of wireless labels each having a unique non-repeated ID number. The guide rail identification area is installed with an identity recognition device, which includes a guide rail ID consisting of the ID numbers of the wireless labels sequentially arranged and summarized.

Abstract: Disclosed is a microwave chemical method for totally extracting fluorine and rare earth from bastnaesite concentrate, including: alkaline conversion defluorination of bastnaesite through microwave irradiation, microwave-assisted leaching of fluorine, solid-liquid separation of leaching solution and microwave-assisted leaching of rare earth. The rare earth hydrochloric acid solution for leaching contains no fluorine ion, so that the fluorine interference of subsequent processes such as impurity removal can be completely avoided; the fluorine and the rare earth are leached with microwaves, which does not need the stirring, so that the automatic control is easy to implement; the fluorine and rare earth leaching speed is high, the leaching time is short and the complete leaching of fluorine and little residual alkali in the slag can be realized by two-time leaching; and no fluorine-containing waste water is discharged, and the total extraction of the rare earth can be realized by one-time leaching.

Abstract: The subject technology provides visual search systems and methods that can be used to efficiently perform visual searches on an electronic device. The subject technology provides systems and methods for presenting one or more visual indicators corresponding to the searchable portions of digital content. A visual search may include identifying, at an electronic device, an element of interest in an image. A visual indicator for the element of interest may be overlaid on the image at a location corresponding to the element of interest. The visual indicator may be selectable to cause a display of information associated with the element of interest responsive to the selection.

Abstract: The present application discloses a semi-dominant molecular marker related to maize dwarf and an application thereof, and relates to the technical field of maize molecular breeding. The molecular marker related to the maize dwarf is caused by a non-synonymous mutation from G to A in a maize gene Zm00001d013465, and the molecular marker is a nucleotide sequence composed of the non-synonymous mutation site and its upstream and downstream bases. The present application identifies a dwarf mutant, coded as E5779, from an EMS mutation population with maize B73 as the genetic background. By genome resequencing and Mutmap mapping, it is found that the mutant is caused by the non-synonymous mutation from G to A in the gene Zm00001d013465. The molecular marker is developed based on this, and the analysis and utilization of E5779 are helpful to improve the maize plant height and density-tolerant breeding, it has an important breeding application potential.

Abstract: Methods and systems for sentence acceptability judgment. A word frequency distribution for a predetermined textual data set is obtained. A replacement rate is determined based on an obtained word frequency distribution for a predetermined textual data set and every occurrence of a word having a frequency lower than the replacement rate is replaced in text of a training data set with a corresponding tag to generate revised text of the training data set (the training data set comprising at least a portion of the predetermined textual data set). A plurality of language models are trained with the revised text and a best performing trained language model of the plurality of trained language models is selected. An acceptability of each sentence of a plurality of candidate sentences is rated using the selected trained language model and a best sentence of the plurality of candidate sentences is selected based on the ratings.

Abstract: The present application provides a method for analyzing droplets on the basis of volume distribution including obtaining a total volume V of a sample containing target molecules based on a system prepared using the sample. The system is emulsified into droplets. A droplet system is obtained when the droplets obtaining the sample executes an amplification reaction. A droplet image of the droplet system is obtained. A total number n of droplets included in the droplet system is obtained based on the droplet image. A droplet volume distribution of the droplet system is obtained based on the droplet image. A number j of negative droplets among the n droplets is counted. A quantitative analysis is performed for the target molecules according to the total volume V of the sample, the total number n of droplets, the droplet volume distribution information, and the number j of negative droplets.

Abstract: The present disclosure relates to polymers which contain a hydrophobic and hydrophilic segment which is sensitive to pH. In some aspects, the polymers form a micelle which is sensitive to pH and results in a change in fluorescence based upon the particular pH. In some aspects, the disclosure also provides methods of using the polymers for the imaging of cellular or extracellular environment or delivering a drug.