96 results about "Normal sequence" patented technology

The invention discloses a method for processing audio stream playback in the network terminal buffer zone for solving the problem of voice pausing and jamming in the network communication. The aim of the invention is achieved by performing real time audio (e.g. voice) communication on the packet-switching network (e.g. IP network), arranging a shake buffer zone on the receiving end, after the receiving end receives the audio package, it first performs decoding based on the normal sequence, then places it into the shake buffer zone, when the shake buffer zone is to be filled, lower the sampling rate to the audio data to realize the fast playback of the audio data stream, when the shake buffer zone is to be empty, raise the sampling rate to the audio data to realize the low speed playback of the audio data stream, when the audio data in the shake buffer is within the normal range, playback the audio stream with the original sampling rate.

A multi-tube differential pressure (Delta P) testing system for testing catalyst filled tubes of tube and shell type catalytic reactors has at least one mobile test unit for movement on the upper tube sheet of a catalytic reactor. An array of test probes is mounted to the mobile test unit and is selectively positionable in sealed gas pressure communicating engagement within the upper ends of selected reactor tubes. A pressure testing gas delivery system is interconnected with the test probes and selectively communicates pressurized gas to the testing tubes at a blow-down pressure or selected test pressure determined by restricted orifices. A differential pressure measurement system measures the back-pressure resulting from application of test pressure to individual reactor tubes and having a computer receiving electronic back-pressure measurement data and producing an electronic and/or visual record correlated with a reactor tube numerical sequence and identifying the resulting back-pressure of each reactor tube of the multi-tube test. The testing system is capable of selectively electronically counting in normal sequence and in inverted sequence to accommodate test unit orientation and incorporates a separate manually positioned testing wand to accommodate tube positions of the reactor that cannot be readily accessed by one or more of the array of test probes.

The invention discloses a method and device for assembling a genome sequence. The method comprises the following steps: filtering short segment sequences output after long insertion segment library tail end sequencing, thereby removing unqualified sequences; comparing the short segment sequences after filtering with a reference genome sequence; dividing paired short segment sequences for comparison into soap reads sequences, single reads sequences and unmap reads sequences according to the comparison result, and making statistics on the quantity of each type of sequences; calculating the distance between the paired short segment sequences on the same segment of the reference genome sequence by utilizing the soap reads sequences, and making statistics on the distance distribution of all the paired short segment sequences on the reference genome sequence; and when the distance distribution satisfies the threshold requirement, assembling the genome sequence by utilizing the unique paired single reads sequences with different segments on the reference genome sequence.

A data storage unit (103) stores an image frame in which an image frame which consists of coded data having a data loss or error received by a receiving unit (100) and complementary coded data which is received by receiving unit at a later time are rearranged into normal sequence. A redecoding unit (105) decodes the image frame stored in the data storage unit (103) with reference to one or more already-decoded image frames required for the decoding, and stores the decoded image frame in a frame additionally-storage unit (104). A decoding unit (101) decodes an image frame with reference to an image frame stored in either a frame storage unit (102) or the frame additionally-storage unit 104 according to a command from a control unit (106).

The invention discloses a frequency domain OFDM symbol generation method and a preamble symbol generation method. The frequency domain OFDM symbol generation method comprises the steps of: generating fixed sequences and signaling sequences in a frequency domain respectively; filling the fixed sequences and the signaling sequences which are arranged in an odd even interleaving manner to an effective subcarrier; and filling zero-sequence subcarriers on both sides of the effective subcarrier to form a frequency domain OFDM symbol with a preset length. According to the technical scheme provided by the invention, the frequency domain OFDM symbol generation method and preamble symbol generation method prevent the generated signaling sequences from having a property of circular shift or circular shift plus phase shift in a time domain, solves the degradation problem of channel estimation performance of the frequency domain, and further ensures that a receiving end can process and receive signals when carrier frequency deviation ranges from -500kHz to 500kHz.

A dataset including at least one temporal event sequence is collected. A one-class sequence classifier f(x) that obtains a decision boundary is statistically learned. At least one new temporal event sequence is evaluated, wherein the at least one new temporal event sequence is outside of the dataset. It is determined whether the at least one new temporal event sequence is one of a normal sequence or an abnormal sequence based on the evaluation. Numerous additional aspects are disclosed.

The invention discloses a network intrusion detection method which makes decomposition based on an inherent subsequence mode, including the following steps: 1, network data interception and pretreatment are done; 2, the sequence of a normal training set and a suspected sequence respectively go through the inherent sequence pattern mining, wherein, a sequence chart is established for the sequences; a closed path in the sequence chart is located and identified as a candidate sequence for the inherent subsequence mode; the inherent subsequence modes composing each candidate sequence are located according to the original sequence; 3, stratification is made in accordance with the support degree; 4, anomaly detection is done as follows: firstly, the inherent subsequence modes of the suspected sequence and the normal sequence respectively and independently form a plurality of layers in accordance with the respective support degree, then the inherent subsequence mode of the suspended sequence and the normal subsequence are matched in the corresponding layer, finally, the anomaly degree is calculated based on the number of matches so as to judge whether the suspected sequence is abnormal. The method overcomes the deficiencies in the prior art and can accurately and effectively identify the existing attacks and the increasing number of new attacks.

The invention discloses a sand core structure for precasting a high-pressure oil channel of an engine cylinder cover. In the sand core structure, a through hole is formed on a dead head core; a high-pressure oil channel sand core is arranged in the through hole; the high-pressure oil channel sand core comprises a high-pressure oil channel hole sand core and a push rod hole sand core; the push rod hole sand core is arranged on the high-pressure oil channel hole sand core; a positioning hole is formed on an internal arm of the through hole; the push rod hole sand core is fixed in the positioning hole; the push rod hole sand core is provided with a core head; and a vent hole is formed on the dead head core corresponding to the positioning hole. The precasting method comprises the following steps of: firstly, matching and adhering the high-pressure oil channel sand core with the dead head core; secondly, matching and adhering the dead head core with an oil pool core; thirdly, making a cylinder cover water jacket sand core and an air duct sand core in an external die according to a normal sequence; and finally, placing the assembled sand cores into a metal external die for pouring to obtain the high-pressure oil channel precast cylinder cover after the sand cores are solidified. The sand core structure and the precasting method have the advantages of improving labor productivity, reducing processing cost, reducing rejection rate and improving the quality control effect of cast blanks.

The invention relates to a face recognition method. The method includes: extracting a plurality of frames from a first video, respectively recognizing face region images, and combining to form a second video; subjecting the second video to eulerian video magnification; respectively performing RGB (red green blue) channel separation aiming at each frame of images in the second video, and respectively calculating a gray scale statistic value of each pixel in three single-channel images to form three signal sequences corresponding to the second video; respectively performing normalization processing of the three signal sequences; performing FFT (fast Fourier transform) on the three normalized signal sequences, and respectively calculating corresponding power spectral density; respectively determining whether maximum power spectral density of the three normalized signal sequences corresponds to identical or similar frequency or not, and if yes, verifying to pass the first video. The face recognition method has advantages that on the premise of meeting recognition accuracy, recognition efficiency can be effectively promoted while better user experience can be provided for users.

The invention discloses a short message combination method and device. The method comprises the steps as follows: at least two short messages sent by a same sender at a set time interval are obtained; whether the at least the two short messages are associated is determined according to the text contents of the short messages: if the at least the two short messages are associated, and the short messages are sequenced and then combined; and the device comprises an acquiring module, an association and judgment module and a combination module used for realizing the method. According to the method and the device, a plurality of short messages which are formed by splitting longer messages and are disordered are recovered to be in a normal sequence, and a user can read the messages conveniently, so that the user experience is better.

A method for constructing multiple nucleic acid sequences for use as positive controls in a genetic test is described. Compositions according to the invention including multiple nucleic acid sequences constructed as described are the optimal controls for simultaneously testing multiple variable nucleic acid sequences at one or more DNA or RNA sites in a subject or subjects. Sequences according to the invention can be prepared chemically and/or by PCR amplification for use directly or after cloning and propagation. At the same time, some sequences can be PCR amplified and/or cloned directly from total genomic DNA obtained from an individual carrying the mutation or variant. Alternatively, the normal sequence to be changed can be cloned and then modified by site directed mutagenesis. Several single mutant or polymorphic sequences that together comprise a panel of multiple control sequences can be added individually to single site tests or mixed together or ligated together by further PCR or by cloning into vectors prior to use in individual or multiplex tests. Controls sequences constructed according to the invention can be used when testing any genetically transmitted nucleic acid sequence by organizations testing quality assurance and by companies maintaining quality control of manufactured genetic test kits.

The invention provides an audio and video synchronization method of an embedded multimedia playing system. The audio and video synchronization method of the embedded multimedia playing system is characterized by including the following steps that firstly, audio and video data streams are received and decoded; secondly, audio and video frames which are decoded flow into a display buffering zone or a queue jumping buffering zone, and the audio frames which are decoded enter an audio buffering zone, wherein the video frames which are decoded according to a normal sequence enter the display buffering zone, and the last-group video frames of which last-group decoding is later than next-group decoding enter the queue-jumping buffering zone; thirdly, synchronized playing is performed. The audio and video synchronization method of the embedded multimedia playing system has the advantages that the audio and video synchronization method is applied to the PIS of the rail transit industry, multimedia information can be issued from an OCC and transmitted to a vehicle, the function of synchronously displaying audios and videos to passengers is achieved finally, and the user experience degree when the passengers take metro vehicles is improved.

The invention provides a training sequence generating method, a training sequence generating device, and an optical communication system, wherein the training sequence generating method comprises: generate a pseudo-random sequence; access to the modulator chirp coefficient used in the optical communication system; to use negated chirp coefficient of the pseudo-random sequence modulated to produce a pseudo-random sequence chirp; frequency domain construct contains L subcarrier training symbol segments, wherein, in the training symbol segment: the signals sent by the ordinal number for the even-numbered subcarriers for the pseudo-random sequence of chirp in the same sequence number of the pseudo-random number of the frequency-domain signal, the sequence number for the odd-numbered sub-carrierthe zero-level signal on a signal transmitted; segment of the training symbols from the frequency domain to the time domain to obtain the segment of the training symbols in the time domain; output after the training sequence is generated based on the time domain training symbols paragraph. The technical solution provided by the present invention can effectively solve the introduction of the optical signal caused by the frequency offset chirp.

The invention belongs to the medicine and biotechnology field and relates to a mutation screening probe of SLC25A13 gene and application thereof. The invention provides the mutation screening probe of the SLC25A13 gene and the nucleotide coding sequence of the probe is shown in SEQ ID NO 4. The invention also provides application of the probe, namely a mutation screening method of the SLC25A13 gene. The method comprises the following steps: using the genome DNA in the sample as the template and adding the forward primer and reverse primer of the mutation site of the SLC25A13 gene and the marked normal sequence probe and mutation screening probe to carry out polymerase chain reaction; and determining whether the sample is mutant by detecting the marker in the reaction product. The probe has the characteristics of simple and direct operation, time saving, intuitive and definite result judgment, lower cost and pollution reduction.

Embodiments of the invention disclose a picture verification code generation method, a picture verification code and a verification method and device. The picture verification code generation method comprises the following steps of: creating a background picture of a picture verification code; randomly selecting a word from a pre-established lexicon, disorganizing the sequence of the selected word, writing an obtained character into the background picture, and storing a coordinate of the character under the normal sequence of the selected word into a cache, wherein the lexicon comprises propernouns and/or idioms; adding interference factor in the background picture in which the character is written; and adding a border for the character in the background picture to which the interferencefactor is added. According to the picture verification code generation method, sequence clicking type picture verification codes can be generated, and picture verification code cracking difficulty canbe greatly increased when verification is subsequently carried out by utilizing the picture verification codes, so that the network safety is improved.

The invention discloses an electricity consumption abnormity detection method, an abnormity detection device, an abnormity detection device and a computer readable storage medium. the electricity consumption abnormity detection method comprises the steps: collecting sequence characteristic values of each target time point from a plurality of power consumption time sequences according to a preset time interval, so as to generate a characteristic data sequence corresponding to each power consumption time sequence; Calculating abnormal scores of all the characteristic data sequences according toan isolated forest algorithm; If the abnormal score is greater than an abnormal warning value, confirming the feature data sequence as a normal sequence; And if the abnormal score is smaller than or equal to an abnormal warning value, determining the feature data sequence as an abnormal sequence. The accuracy of power consumption abnormity detection is improved, the interference of abnormal valuesis eliminated, the calculation complexity is reduced, and the detection efficiency is improved.

A Viterbi decoding based multiplex parallel circular block backtracking algorithm, which contains providing a decoding algorithm only needing to collect convolution code coding backtracking, the backtracking algorithm using single or double RAM whose unit number is constantly the product of two times backtracking depth and the sum of convolution code, the RAM is used by divided into blocks whose number determined by backtracking depth and size of backtracking block, each RAM block corresponding a backtracking unit and backtracking gating network, only part of RAM needed to be accessed, the effective parallel backtracking route number the ratio of backtracking depth and size of backtracking block, in backtracking process, the minimum route measurement value corresponded state value is used as the current state value, finally the backtracking result is arranged in inverted sequence and outputted in normal sequence after being stored.

The invention discloses a Polar code coding method with any code length. The Polar code coding method comprises the following steps: determining coding parameters; marking all the sub-channels used for transmitting the information, sorting the channel capacities of the plurality of sub-channels under the specific signal to noise ratio, and storing the sorted channel index sequence; setting a polarization kernel and calculating an intermediate matrix and the number of lines needing to be deleted; calculating to obtain an initial reduction matrix; judging and correcting the initial reduction matrix to obtain a new polarization matrix; and constructing an information sequence and carrying out polarization coding to obtain a final coding sequence. According to the invention, the coding sequence output by the Polar code encoder can be any code length, so that the application flexibility of the Polar code in 5G application is improved; the method has the advantages that information bit lossis avoided as much as possible, effective transmission of information is guaranteed, decoding bit error rate is reduced, communication system performance is improved, and higher digital communicationsystem applicability is achieved.

The invention discloses a DNA data storage mixed error correction and data recovery method. The method comprises the following steps: screening sequencing reads according to two standards of an editing distance of an overlapping part of double-end reads and whether verification information of a label part is correct or not; clustering the read segments according to the recovered label and file number, and dividing the read segments in the cluster into a middle overlapping part and a non-overlapping part; if the number of the copies of the middle overlapped part or the non-overlapped part is greater than a set threshold value, determining a central sequence by adopting a clustering method, otherwise, performing determining through multi-sequence combination; dividing a basic group of a datapart corresponding to each read segment into a plurality of segments with preset lengths, and performing joint error correction on each segment according to odd-even of a column sequence number and corresponding segments before and after the odd-even of the column sequence number; and during error correction, adopting multi-sequence combination to finally obtain reliable recovery of the fragmentof which the repeated code length is the preset length. The method mainly solves the problems of insertion/deletion errors in sequencing reads and combination of reads covered by low sequencing.

The invention belongs to the fields of molecular biology and medicine. The invention provides a method for detecting MLH1 gene mutation: firstly, obtain the DNA sequence or amino acid sequence of the promoter region or coding region of the MLH1 gene in the sample, and then compare it with the corresponding sequence of the normal MLH1 gene to determine whether the MLH1 gene exists in the sample Mutation status; the coding region is the No. 1, No. 2 or No. 19 exon of the MLH1 gene. The invention also provides a corresponding kit for detecting MLH1 gene mutation and the application of the method in determining patients with hereditary nonpolyposis colorectal cancer. The detection method of the invention is simple and easy to implement, low in cost, efficient and fast, and the result is clear. It can greatly reduce the burden on patients, exclude non-HNPCC patients as soon as possible, and provide a reference for the drug regimen of colorectal cancer patients.

The invention discloses a data sending and receiving method and device and a data transmission method and system, and relates to the communication technology. The method comprises the following steosof splitting long data to be sent into a plurality of data packets; adding a packet header to each data packet, wherein the packet header comprises a header, a data length, a packet number and a packet index; when the data is sent, the data packets are sequentially sent according to the normal sequence of the packet indexes; when a new header and an initial packet index appear in data receiving and the last long data is completely received, responding to a first return command fed back by a receiving end, and sending a next data packet according to a normal packet index sequence of the currentlong data; when a new header and a non-initial packet index appear in data receiving and the previous long data is completely received, responding to a second return command fed back by the receivingend, and sending a next data packet according to the sequence of the initial packet index of the current long data; The whole data sending process is more optimized, and information loss caused by data splitting sending due to packet loss and packet leakage can be avoided.

An embodiment of the invention provides an operation and maintenance operation detection method and device and electronic equipment. The method includes: acquiring a numerical value sequence corresponding to parameter values of preset performance parameters of target equipment at each time moment in a monitoring time period which is divided into multiple sub time periods; according to a sub sequence of the numerical value sequence in each sub time period, determining change types of the preset performance parameters in each sub time period; ordering the change types of the sub time periods according to a time sequence to acquire a change type sequence; determining whether a sub sequence set of the change type sequence has abnormal sub sequences marked as abnormal change in a preset changerule library or not; if yes, determining that abnormal operation and maintenance operation exists in the monitoring time period. Whether the abnormal operation and maintenance operation exists in themonitoring time period or not is detected on the basis of the change type sequence of the performance parameters of the target equipment in the monitoring time period, so that detection result is moreaccurate.