261results about How to "Shorten screening time" patented technology

The invention relates to a screening method of salt resisting germplasms of corns. The method comprises the following steps: after seeds are disinfected, soaking the seeds in saline liquor with different concentrations for 12 hours for a germinating and seedling growth experiment; in a stress experiment in a germinating stage, supplementing 15ml of saline liquor for one time every day; after the seeds are germinated for 4 days, retaining the germinating seeds which are consistent in growth for each sample, and determining the content of Na+ and K+ ions; in the seedling growth experiment, directly seeding the corn seeds disinfected and soaked in disinfected vermiculites containing 0mmol/L, 60mmol/L, 140mmol/L and 220mmol/L NaCl liquids; placing the seeds in a greenhouse for stress treatment; and determining the content of Na+ and K+ ions when the controlled seedling has three leaves and one heart. According to the method provided by the invention, the salt resisting germplasms are screened through the Na+ and K+ ions and K+/Na+ ratio in parts of different selfing lines in the germinating stage and seedling growth stage, so that the screening workload is effectively reduced, the screening time is shortened, and the screening efficiency and the accuracy of the result are improved.

The invention provides a large traffic searching method. The large traffic searching method comprises the following steps: inputting a departure place, a destination and departure time by a user; receiving data input by the user and processing; judging whether a through route and a transit route exist between the departure place and the destination or not; feeding information of the through route and the transit route back to the user; when the through route and the transit route do not exist between the departure place and the destination, feeding information of inexistence of the through route and transit route back to the user. The invention further provides a large traffic searching system. The large traffic searching method and system provided by the invention have the advantages that comprehensive transportation inquiry is provided based on various vehicles including flights, trains, buses and the like; finally, a specific route plan is determined. With the adoption of the method, the user can obtain a suggested route only by inputting the departure place, the destination and the departure time, the method aims to help the user to select the most suitable tripping route, and screening time of the user is reduced.

The invention discloses a superfluous picture deletion method and a superfluous picture deletion device, and belongs to the field of computers. The deletion method comprises the followings steps of acquiring the marks of all pictures in a program installation package; extracting picture relevant files in the program installation package, which are files relevant with applied pictures in the program installation package; acquiring the marks of the applied pictures in the program installation package according to the extracted picture relevant files; acquiring the marks of superfluous pictures on the basis of the marks of all pictures and the marks of the applied pictures; and deleting the superfluous pictures in the program installation package according to the marks of the superfluous pictures. According to the superfluous picture deletion method and the superfluous picture deletion device, disclosed by the invention, the marks of all the pictures and the marks of the applied pictures in the program installation package are obtained, the superfluous pictures can be deleted according to the marks of all the pictures and the marks of the applied pictures, and the purposes of shortening the selection time of the superfluous pictures and improving the selection accuracy of the superfluous pictures can be achieved.

The invention discloses a method and a system for determining an optimal intra-frame prediction mode. The method for determining the optimal intra-frame prediction mode comprises the following steps: determining a main sampling direction of a current PU (Prediction Unit) according to texture information of the current PU or an optimal intra-frame prediction mode of an upper layer PU; if the main sampling direction of the current PU is determined, performing sparse and dense sampling on an angle mode of the current PU according to a variable sampling step length strategy to obtain a sampling angle mode; if the main sampling direction of the current PU is not determined, performing uniform sampling on the angle mode of the current PU according to a uniform sampling step length strategy to obtain a sampling angle mode; processing the sampling angle mode to obtain a candidate angle mode; and constructing a candidate intra-frame prediction mode set including the candidate angle mode, and determining an intra-frame prediction mode with a minimum rate-distortion cost from the candidate intra-frame prediction mode set as the optimal intra-frame prediction mode. Through the technical scheme, the optimal intra-frame prediction mode of the current PU can be determined rapidly and accurately.

The invention provides a method for determining a highly accelerated stress screening test condition. The method comprises the following steps of: firstly, setting an initial testing condition according to the temperature and vibration comprehensive stress operation and damage limit of a product to carry out temperature and vibration comprehensive stress test; accurately obtaining the highly accelerated stress screening test condition by using a successive approximation method; and then verifying by using a typical defect of the product to obtain the validity of the screening test condition; and finally, obtaining the effective highly accelerated stress screening test condition of the temperature and vibration comprehensive stress through repeated tests and scientific adjustment. By using the test condition obtained by using the method provided by the invention, the screening test time can be largely reduced, the testing efficiency can be increased and the test cost can be saved.

The invention is applicable to the technical field of communication, and provides a data deletion method and a mobile terminal thereof. The method comprises the steps as follows: recording step: operation information about data backup is recorded; prompting step: when performing data deletion, a user is prompted to delete the backed-up data via the operation information. Therefore, data deletion accuracy and efficiency are improved.

The invention provides a drug-target interaction prediction model method based on deep embedding learning of a molecular graph and a sequence, and the method comprises the steps: building a map neural network based on an attention mechanism and an attention-oriented bidirectional LSTM to predict the interaction, wherein in order to achieve the more effective training, a pre-training model BERT is utilized to extract embedded vector representation of each sub-sequence from a protein sequence, and meanwhile, a local breadth-first search algorithm is designed to extract sub-graph information of a drug molecular graph, so that a graph neural network learns higher feature information. On one hand, in the aspect of drug molecules, better spatial features can be learned based on the molecular graph; on the other hand, the protein sequence data size is large, larger protein space can be covered, and the generalization ability is improved.

The invention relates to a screening method for deep-seeding-resisting corn germplasms. The method comprises the following steps: collecting corn germplasm materials in areas; selecting 90 full and unbroken seeds from the corn germplasm materials; determining an experimental barrel which is 25cm in height and 16cm in diameter and corresponds to each variety, packaging vermiculites which are 10cm deep uniformly to all experimental barrels before seeding, and thoroughly pouring water; then, uniformly seeding 30 full and unbroken seeds selected from the selfing lines to vermiculites in the experimental barrels, then covering the vermiculites by 15cm, and repeating the experiment for 3 times; after seeding the germplasm materials, placing the germplasm materials in a same heliogreenhouse, maintaining the indoor temperature at 25+/-2 DEG C and humidity at 70%+/-3, and naturally germinating to emerge; in 10 days, carrying out statistic on rate of emergence, and retaining 10 strains which are consistent in growth for each sample to determine root, root length, mesocotyl length, coleoptile length, seedling length and the like; identifying and evaluating the deep-seeding resistances for the germplasms and screening the self lines with strong deep-seeding resistances. According to the method provided by the invention, the screening workload is reduced, and the screening efficiency and the accuracy of the screening result are improved.

The invention discloses a method for data sieving and is applied in the sieving of the data records in a database at least comprising a first data item, a second data item and a third data item. The invention comprises that: the pre-sieving is executed, the data records which can not meet the sieving requirement are get rid of to form a preselection base; the data records which meet the sieving conditions are sieved from the preselection base to form a candidate base; the content of the first data item used for random distribution control and the content of the second data item used for concentration degree control are extracted; the random distribution control is executed according to the content of the first data item, a data record is randomly sieved, then the concentration degree control is made to the data record according to the content of the second data item; if the record meets the requirement of the concentration degree, whether the content of the third data item of the data record meets the matching conditions is judged, if the content of the third data item of the data record meets the matching conditions, the data record is moved into a target database. The invention also provides a data sieving device as well as a sieving method and a sieving device for securitization loan. The invention has less time consumption and higher efficiency during the data sieving.

The invention relates to an oil-degradation oil-and-salt tolerance bacterial strain which is named as SY-1. The systematic name of the SY-1 is Escherichia coli, the file number is CGMCC (China General Microbiological Culture Collection Center No.7075, the file date is December 31, 2012, the file address is the Micro-organism Study of Chinese Academy of Sciences, No.3, No.1 Beichen west road, Chaoyang district, Beijing city, and the file unit is China General Microbiological Culture Collection Center. The oil-degradation oil-and-salt tolerance bacterial strain is good in oil and salt tolerance, is Gram-negative bacterium shaped in short rhabditiform and with flagellum and no spores and active, is in citrate and glucose ammonium salt positive property and can generate catalase without gelatinase. The bacterial strain is fast in growth, can grow in oil used as unique carbon source, and has the advantages of oil degradation.

The embodiments of the invention disclose a user monitoring method and device. The method comprises the following steps: when the end time of the current update period arrives, a default algorithm is adopted to calculate the residence time of each user in a default region in network data recorded by base stations; users of which the residence time in the default region in the current update period is greater than a first threshold value are classified as a first kind of users and stored into a list of the first kind of users; users of which the residence time in the default region in the current update period is less than a second threshold value are classified as a second kind of users and stored into a list of the second kind of users; and other users except users recorded in the list of the first kind of users and the list of the second kind of users corresponding to the current update period are screened out from all users recorded in the network data, and the other users are monitored. The method and device of the invention are used to solve the problem of time and resource waste caused by identification device installation and utilization and identification chip distribution and recovery in the prior art.

The invention discloses a lightweight block cipher algorithm Shadow implementation method and device based on an SPN structure and a computer readable medium. The method comprises the following steps:obtaining a 64-bit plaintext to be encrypted, and determining an iteration round number R according to the number of key bits; in the first round of operation to the Rth round of operation, enablingeach round of operation to be sequentially subjected to round key addition operation, nonlinear S-box replacement operation, row displacement operation and linear column hybrid operation, and updatinga key; taking the data obtained after the linear column hybrid operation as the to-be-encrypted data of the next round of operation, and taking the updated key as the key of the next round of operation; and performing round key addition operation on the data after the Rth round of operation and the key, and outputting a ciphertext. On the basis that part of cryptographic indexes of the S box arenot affected by affine transformation, a composite affine mathematical method is adopted, the pseudo-random key related S box is constructed on a finite field GF (24), meanwhile, a column hybrid matrix is constructed according to the Schmidt matrix orthogonalization principle, and attacks can be effectively resisted.

The invention discloses four sets of oligonucleotide sequences for recognition and identification of vibrio anguillarum, and a screening method of the oligonucleotide sequences, and relates to the technical field of recognition detection of vibrio anguillarum. Two ends of each oligonucleotide sequence are fixed sequences, intermediate sequences are arrayed according to the order of 5'-3' as follows: a first set contains two sequences of H1 and H2, a second set contains five sequences of H5, H6, H26, H38 and H33, a third set contains three sequences of H12, H25 and H42, and a fourth set contains a sequence of H28; and any of the oligonucleotide sequences in each set serves as the intermediate sequence of an aptamer to be used for vibrio anguillarum detection. The screening method of the sequences sequentially comprises the steps of random oligonucleotide library synthesis, combination, separation, PCR amplification and high-throughput sequencing which are circulated for 3-5 rounds, andfinally, the target sequences are obtained. The sequence length of the aptamer of the vibrio anguillarum is shortened, and the screening method is quick.

The invention discloses a hotel sequencing method based on the traffic convenience degree in an OTA (online travel agent) website. The method comprises the following steps of S1, collecting and storing the hotel geographical position, and the nearby public transport, the private transport and peripheral life data in the OTA website; S2, calculating the public transport convenience degree score of a hotel according to the data in the S1; S3, calculating the private transport convenience degree score of the hotel according to the data in the S1; S4, comprehensively calculating the hotel transport convenience degree score according to the public transport convenience degree score, the private transport convenience degree score and the peripheral life convenience degree score obtained through calculation in the S2, S3 and S4; S6, sequencing the current hotels in a sequence from high score to low score according to the hotel transport convenience degree scores. The hotel sequencing method has the advantages that on the basis of the hotel self transport convenience and the peripheral matched environment quality, the hotels are comprehensively analyzed; the hotels conforming to the requirements are recommended to users, so that the user experience of the OTA website is effectively improved.

The invention relates to a method for fast screening a mammal cell strain having a high exogenous protein expression level. The method utilizes a novel high-expression carrier, realizes efficient expression of a desired protein in an appropriate mammal host cell, and realizes fast screening of a cell strain having a high desired protein expression level by a unique screening method. The method greatly reduces time and a cost of screening of the cell strain having a high desired protein expression level and substantially improves an expression level of the exogenous protein in the mammal host cell.

The invention discloses a method for screening hybridoma cells secreting specific monoclonal antibodies, and an application thereof. The method comprises the following steps: coupling Oleyl-PEG4000-NHS with Ag to obtain Oleyl-PEG4000-NHS-Ag; adding Oleyl-PEG4000-NHS-Ag in cloning of hybridoma cells to be screened, culturing, removing the above obtained supernatant, and cleaning; adding a fluorescent substance-labeled anti-mouse second antibody, incubating, removing the obtained supernatant, and cleaning; and adding an incomplete medium, observing cell masses under visible light and fluorescence by using an inverted fluorescence microscope, carrying out negative and positive labeling, adding a methyl cellulose semisolid medium to plate holes containing positive cell masses, transferring positively labeled cells to a new cell culture plate, and culturing to obtain the hybridoma cells secreting the specific monoclonal antibodies. The method has the advantages of rapidness, simplicity and high accuracy, and can be used for rapid screening to obtain the hybridoma cells secreting the specific monoclonal antibodies.

The embodiment of the invention discloses a question processing method and device based on semantic matching, a terminal and a storage medium, and the method comprises the steps of obtaining a to-be-analyzed question, processing the to-be-analyzed question, obtaining a label of the to-be-analyzed question, obtaining a standard question set corresponding to the label, determining semantic similarity between the to-be-analyzed questions and each standard question in the standard question set, screening out target standard questions from the standard question set based on the semantic similarity, determining answers corresponding to the to-be-analyzed questions based on target answers corresponding to the target standard questions, and displaying the answers corresponding to the to-be-analyzed questions. By implementing the method, the labels of the questions can be analyzed, and the answers to the questions are found based on the labels of the questions, so that the screening time of the answers to the questions is shortened, and the processing efficiency and processing accuracy of the questions are improved. The scheme is applied to a medical scene, for example, questions raised by a patient are intelligently answered, and digital medical treatment is realized.

The invention discloses a grain drying and screening integrated device. The grain drying and screening integrated device comprises a case, a spreading device, an air heater, a screening box and an impurity box. The spreading device is arranged in the case. Two horizontal sliding rods are arranged in the case. The two ends of each sliding rod are welded to the inner wall of the case. The screeningbox is slidably mounted between the two sliding rods. A first screen, a second screen and a third screen are sequentially arranged in the screening box from top to bottom. Compared with an ordinary spreading device, a flat spreading plate is indirectly driven by a driving motor to move left and right so that grain can be evenly spread on a conveying belt, the situation that the grain is accumulated in the feeding process, and consequentially, the drying effect is affected is prevented; the screening box moves left and right in the screening process, so that the flow rate of the grain in the screening box is improved, and the screening speed is improved; and meanwhile, a first screen, a second screen and a third screen are arranged in the screening box, so that grain with various sizes is separated, secondary operation is not needed, and the screening time is shortened.

The invention discloses a fibrinolytic enzyme-producing Bacillus subtilis and a fermentation method and application thereof. The Bacillus subtilis is isolated and sieved from a traditional Chongqing fermented food, i.e., fermented soya beans. The Bacillus subtilis DC27 is collected in China Center for Type Culture Collection under CCTCC NO: M 2015573. The invention further provides a liquid fermentation method of the Bacillus subtilis, and the fibrinolytic enzyme in obtained fermentation broth has an activity of up to 4506 IU/ml. The Bacillus subtilis is from foods and can secrete the high-activity fibrinolytic enzyme; the Bacillus subtilis is safe and nontoxic, and is applicable to the development of functional foods or drugs for preventing or relieving thrombotic diseases; and the Bacillus subtilis has a promising application prospect.