Abstract: A retractable power plug includes a housing having an opening formed therein, a mounting portion fixed in the housing, a plurality of pins, and a cover plate. The pins are rotatably mounted on the mounting portion. The cover plate at least partially cover the opening and defines a plurality of receiving grooves corresponding to the pins. The plurality of pins are configured in a first configuration and protrude out of the receiving grooves and in a second configuration to be within the plurality of receiving grooves. The cover plate further defines at least one recess on a sidewall of one of the plurality of receiving grooves, thereby enabling the pin to be retracted.

Abstract: The present invention provides for a one or more layer graphene optical modulator. In a first exemplary embodiment the optical modulator includes an optical waveguide, a nanoscale oxide spacer adjacent to a working region of the waveguide, and a monolayer graphene sheet adjacent to the spacer. In a second exemplary embodiment, the optical modulator includes at least one pair of active media, where the pair includes an oxide spacer, a first monolayer graphene sheet adjacent to a first side of the spacer, and a second monolayer graphene sheet adjacent to a second side of the spacer, and at least one optical waveguide adjacent to the pair.

Abstract: The invention relates to a preparation method of a polymeric phase-change material, comprising: using 1, 2 or 3 of (meth)acrylate poly(ethylene glycol) n-alkyl ether ester as a raw material, wherein the (meth)acrylate poly(ethylene glycol) n-alkyl ether ester has a structural general formula of CH2?C(CH3)—COO(CH2CH2O)mCnH2n+1 or CH2?CH—COO(CH2CH2O)mCnH2n+1, m=1 to 100, and n=10 to 50; washing the raw material with a solution of sodium hydroxide, potassium hydroxide, sodium carbonate or potassium carbonate having a mass percentage of 1% to 10% to remove a polymerization inhibitor, and subjecting reduced-pressure distillation, and then to a polymerization reaction by adopting one of the following process; 1. polymerization reaction initiated by irradiation; 2. polymerization reaction initiated by an initiator; 3.

Abstract: A method and an apparatus are provided for retrieving keyword. The apparatus configures at least two types of language models in a model file, where each type of language model includes a recognition model and a corresponding decoding model; the apparatus extracts a speech feature from the to-be-processed speech data; performs language matching on the extracted speech feature by using recognition models in the model file one by one, and determines a recognition model based on a language matching rate; and determines a decoding model corresponding to the recognition model; decoding the extracted speech feature by using the determined decoding model, and obtains a word recognition result after the decoding; and matches a keyword in a keyword dictionary and the word recognition result, and outputs a matched keyword.

Abstract: A method is implemented at a computer to determine that certain information content is composed or compiled in a specific language selected among two or more similar languages. The computer integrates a first vocabulary list of a first language and a second vocabulary list of a second language into a comprehensive vocabulary list. The integrating includes analyzing the first vocabulary list in view of the second vocabulary list to identify a first vocabulary sub-list that is used in the first language, but not in the second language. The computer then identifies, in the information content, a plurality of expressions that are included in the comprehensive vocabulary list, and a subset of expressions that are included in the first vocabulary sub-list. Upon a determination that a total frequency of occurrence of the subset of expressions meets predetermined occurrence criteria, the computer determines that the information content is composed in the first language.

Abstract: This disclosure provides systems, methods, and apparatus related to nanophotonics. In one aspect, an arrangement of waveguides includes a substrate and three waveguides. Each of the three waveguides may be a linear waveguide. A second waveguide is positioned between a first waveguide and a third waveguide. The dimensions and positions of the first, the second, and the third waveguides are specified to substantially eliminate coupling between the first waveguide and the third waveguide over a distance of about 1 millimeter to 2 millimeters along lengths of the first waveguide, the second waveguide, and the third waveguide.

Abstract: The present application discloses a method, an electronic system and a non-transitory computer readable storage medium for recognizing audio commands in an electronic device. The electronic device obtains audio data based on an audio signal provided by a user and extracts characteristic audio fingerprint features from the audio data. The electronic device further determines whether the corresponding audio signal is generated by an authorized user by comparing the characteristic audio fingerprint features with an audio fingerprint model for the authorized user and with a universal background model that represents user-independent audio fingerprint features, respectively. When the corresponding audio signal is generated by the authorized user of the electronic device, an audio command is extracted from the audio data, and an operation is performed according to the audio command.

Abstract: A method of processing a DOI in interaction information to improve user efficiency in acquiring information identified by the DOI is disclosed. The method includes acquiring, by a server, a digital object unique identifier (DOI) in interaction information; parsing the DOI to acquire information identified by the DOI; and pushing the information identified by the DOI to a client end, so that the client end displays the information identified by the DOI in an information interactive interface. An apparatus of processing a DOI in interaction information is also disclosed.

Abstract: A method and an apparatus are provided for retrieving keyword. The apparatus configures at least two types of language models in a model file, where each type of language model includes a recognition model and a corresponding decoding model; the apparatus extracts a speech feature from the to-be-processed speech data; performs language matching on the extracted speech feature by using recognition models in the model file one by one, and determines a recognition model based on a language matching rate; and determines a decoding model corresponding to the recognition model; decoding the extracted speech feature by using the determined decoding model, and obtains a word recognition result after the decoding; and matches a keyword in a keyword dictionary and the word recognition result, and outputs a matched keyword.

Abstract: The present invention provides a laser frequency adjustment method and a laser frequency adjustment system. The laser frequency adjustment method includes: (1) providing a primitive laser pulse (10); (2) using a beam splitter (20) to split the primitive laser pulse (10) into a first sub-laser pulse (11) and a second sub-laser pulse (12); (3) using a plurality of reflectors (30) to reflect the first sub-laser pulse (11) to a location where the second sub-laser pulse (12) exits the beam splitter (20) and making the first sub-laser pulse (11) passing through an optical length extension device (40) during the transmission of the first sub-laser pulse (11); and (4) superimposing the first sub-laser pulse (11) and the second sub-laser pulse (12) and using a compensator sheet (50) to adjust the transmission direction of the superimposed laser pulse (13).

Abstract: This application discloses a method implemented of recognizing a keyword in a speech that includes a sequence of audio frames further including a current frame and a subsequent frame. A candidate keyword is determined for the current frame using a decoding network that includes keywords and filler words of multiple languages, and used to determine a confidence score for the audio frame sequence. A word option is also determined for the subsequent frame based on the decoding network, and when the candidate keyword and the word option are associated with two distinct types of languages, the confidence score of the audio frame sequence is updated at least based on a penalty factor associated with the two distinct types of languages. The audio frame sequence is then determined to include both the candidate keyword and the word option by evaluating the updated confidence score according to a keyword determination criterion.

Abstract: The present invention provides a polysilicon manufacturing method that enhances homogeneity of a polysilicon layer, including (1) forming a amorphous silicon layer (30) on a substrate (10); (2) dividing the amorphous silicon layer (30) into a plurality of areas and measuring a film thickness of the amorphous silicon layer (30) in each of the areas: (3) comparing the measured film thickness of each of the areas with a predetermined film thickness so as to identify and define ones of the areas of which the measured film thicknesses are greater than a predetermined film thickness as excessive-film-thickness areas (42); (4) spraying an etchant liquid to rinse the amorphous silicon layer (30) of the excessive-film-thickness areas (42) in order to etch off a portion of the amorphous silicon layer (30) of each of the excessive-film-thickness areas (42) and at the same time, spraying pure water to rinse remaining ones of the areas so as to make the film thickness of each of the areas of the amorphous silicon layer (3

Abstract: Implementation manners of the present disclosure provide an audio interaction method, apparatus, and system. The method includes: determining a user attribute tag, and grouping users into N groups based on the user attribute tag, N being a positive integer that at least is 2; recording an audio file of a user, and extracting decibel information of the audio file of the user from the recorded audio file of the user; and comparing the extracted decibel information of the audio file of the user with decibel information of a user in another group different from a group the user is in, and presenting a comparison result. In the implementation manners of the present disclosure, interaction between grouped users is achieved in an audio manner, therefore, interactive effect is better, and interactive efficiency is improved.

Abstract: A computer-implemented method is performed at a server having one or more processors and memory storing programs executed by the one or more processors for authenticating a user from video and audio data. The method includes: receiving a login request from a mobile device, the login request including video data and audio data; extracting a group of facial features from the video data; extracting a group of audio features from the audio data and recognizing a sequence of words in the audio data; identifying a first user account whose respective facial features match the group of facial features and a second user account whose respective audio features match the group of audio features. If the first user account is the same as the second user account, retrieve the sequence of words associated with the user account and compare the sequences of words for authentication purpose.

Abstract: A disk array flushing method and a disk array flushing apparatus. The method includes acquiring a sequence, which is according to physical addresses of logical units, of the logical units in a same redundant array of independent disks (RAID) group in a disk array, and sequentially flushing, according to the sequence of the logical units, concurrent flushing input-outputs (IOs) of the RAID group to the logical units in the RAID group. According to the disk array flushing method and the disk array flushing apparatus, by uniformly scheduling logical units in a single RAID group and performing flushing according to a sequence of physical addresses, it takes less time for a magnetic arm to jump back and forth for addressing, and influences between RAID groups are prevented by means of independent control over the RAID groups, thereby improving flushing efficiency of a disk array, and increasing throughput of the disk array.

Abstract: A nanoplasmonic resonator (NPR) comprising a metallic nanodisk with alternating shielding layer(s), having a tagged biomolecule conjugated or tethered to the surface of the nanoplasmonic resonator for highly sensitive measurement of enzymatic activity. NPRs enhance Raman signals in a highly reproducible manner, enabling fast detection of protease and enzyme activity, such as Prostate Specific Antigen (paPSA), in real-time, at picomolar sensitivity levels. Experiments on extracellular fluid (ECF) from paPSA-positive cells demonstrate specific detection in a complex bio-fluid background in real-time single-step detection in very small sample volumes.

Abstract: A method and device for speaker recognition are provided. In the present invention, identifiability re-estimation is performed on a first vector (namely, a weight vector) in a score function by adopting a support vector machine (SVM), so that a recognition result of a characteristic parameter of a test voice is more accurate, thereby improving identifiability of speaker recognition.

Abstract: An information push method, includes acquiring a photo of an environment in which a client is located; recognizing a target object from the photo and collecting statistics on a frequency value or a frequency of appearance; and pushing related information of the target object to the client according to the frequency value or the frequency. An information push system, a digital television receiving terminal, and a computer storage medium are further provided. Statistics are collected on quantized data of how often a target object appears in an environment in which a client is located by using a scientific and technical means and the statistical data is used as a reference for push.

Abstract: The invention relates to a preparation method of a polymeric phase-change material, comprising: using 1, 2 or 3 of (meth)acrylate poly(ethylene glycol) n-alkyl ether ester as a raw material, wherein the (meth)acrylate poly(ethylene glycol) n-alkyl ether ester has a structural general formula of CH2?C(CH3)—COO(CH2O)mCnH2+1 or CH2?CH—COO(CH2CH2O)mCnH2+1, m=1 to 100, and n=10 to 50; washing the raw material with a solution of sodium hydroxide, potassium hydroxide, sodium carbonate or potassium carbonate having a mass percentage of 1% to 10% to remove a polymerization inhibitor, and subjecting reduced-pressure distillation, and then to a polymerization reaction by adopting one of the following process; 1. polymerization reaction initiated by irradiation; 2. polymerization reaction initiated by an initiator; 3.

Abstract: This disclosure provides systems, methods, and apparatus related to catalytic devices. In one aspect, a device includes a substrate, an electrically insulating layer disposed on the substrate, a layer of material disposed on the electrically insulating layer, and a catalyst disposed on the layer of material. The substrate comprises an electrically conductive material. The substrate and the layer of material are electrically coupled to one another and configured to have a voltage applied across them.