Abstract: The present disclosure relates to the field of communication technologies, in particular to a shared bandwidth speed-limiting method, device, and storage medium. The method for customer premise equipment comprises: adding a token into a token bucket of the customer premise equipment based on an initial bandwidth rate; and sending a statistical information report to a central controller every preset time interval, wherein the statistical information report represents a report reflecting a surplus or deficiency condition of tokens in the token bucket, and is configured to instruct the central controller to reallocate tokens of the customer premise equipment by a central token bucket.

Abstract: A toilet brush holder comprising a holder body and a barrel body, wherein the barrel body is movably sleeved with the holder body, and an elastic member is arranged between the holder body and the barrel body. The holder body is hinged with barrel covers which are opened and closed along with up-down movement of the barrel body. The barrel body comprises an inner barrel arranged in the holder body, and the holder body comprises a ventilation hole. When the toilet brush is placed in the inner barrel, the barrel body moves down relative to the holder body, propelling the barrel covers closed at the holder body, and allowing the inner barrel to communicate with exterior of the holder body through the ventilation hole. The ventilation hole allows residual water left on the toilet brush to be quickly drained and prevents the breeding of bacteria and generation of foul smell.

Abstract: A method for mass spectral analysis of molecules based on full mass spectral profile or raw scan mode data, comprising the steps of specifying the basic building blocks for the molecule; estimating initial values including trial numbers of building blocks, charge states, and possible modifications; calculating discrete isotope distributions based on elemental compositions; calculating a profile mode theoretical mass spectrum using a target mass spectrum peak shape function; performing regression analysis between acquired profile mode mass spectrum data and calculated theoretical mass spectrum data and reporting regression statistics; using regression statistics as feedbacks to update initially estimated values including trial numbers of building blocks, charge states, and possible modifications; and repeating selected step to optimize the regression statistics. A mass spectrometer operating in accordance with the method.

Abstract: Disclosed is a fracturing method with synergistic effects of energy enhancement, oil displacement, huff and puff, imbibition, and displacement, comprising the following steps: selecting a well that has never been fracted as a fracturing well; dividing the target layer into several fracturing intervals; performing perforating operations on each fracturing interval of the fracturing well; injecting pore cleaning fluid into the fracturing well to perform pore cleaning and acidizing pretreatment on each cluster perforation; designing fracturing construction parameters; alternately injecting slick water fracturing fluid and oil-displacement slick water fracturing fluid into each of the fracturing layers. The beneficial effects of this disclosure are: the construction method of slick water fracturing fluid with high pump rate and large displacement can form a more complex fracture network structure, tap the production potential of the target reservoir, and further improve the stimulation effect of the reservoir.

Abstract: A method and apparatus for providing emotional care in a session between a user and conversational agent. A first group of images comprising one or more images associated with the user may be received in the session. A user profile may be obtained. A first group of textual descriptions may be generated from the first group of images based at least on emotion information in the user profile. A first memory record may be created based at least on the first group of images and the first group of textual descriptions. A second group of images may be received in the session to generate a second group of textual descriptions from the second group of images based at least on the emotion information in the user profile. A second memory record may be created based at least on the second group of images and the second group of textual descriptions.

Abstract: A method, mass spectrometer and computer readable medium for acquiring mass spectral data in raw profile; detecting presence of compounds and relevant time window; performing multivariate statistical analysis of raw profile data in a time window to determine compounds; obtaining separation time profiles for detected compounds containing respective time locations in a time window; and computing pure mass spectra for compounds based on separation time profiles or time locations. A method, mass spectrometer and computer readable medium for acquiring mass spectral data in raw profile of a known and unknown sample; combining mass spectral scans for a sample into a single mass spectrum across a separation time window; performing multivariate statistical analysis of the acquired mass spectral data and computing a distance measure between the known and unknown sample; and using the distance measure as an indication for an unknown sample belonging to a known sample or sample group.

Abstract: Disclosed in the present application are a method for improving performance of a low-intermediate frequency receiver, a storage medium, and a receiver. The method comprises: selecting a local oscillator signal from a preset local oscillator frequency set as an initial local oscillator signal to perform frequency mixing processing on an input signal, so as to obtain a low-intermediate frequency signal comprising a low-intermediate frequency useful signal and a low-intermediate frequency interference signal; determining whether an energy ratio of the low-intermediate frequency interference signal to the low-intermediate frequency useful signal is greater than a first preset ratio; and if the energy ratio is greater than the first preset ratio, selecting another local oscillator frequency from the preset local oscillator frequency set as the current local oscillator signal to process the input signal.

Abstract: A polysubstituted benzene compound, preparation method thereof, and method of using the same. The compound has a formula I or I?, where X represents carbon, sulfur, or oxygen; R1 represents a C1-16 alkyl, C2-16 alkenyl, or C2-10 alkynyl; R2 represents hydrogen, halogen, C1-16 alkyl, C2-16 alkenyl, or C2-10 alkynyl; or an aryl group or a substituted aryl group by 1-5 groups selected from halogen, C1-26 alkyl, C1-3 halogenated alkyl, O—C1-3 alkyl, hydroxyl, amino, nitro, cyano group, aldehyde group and ester group; or a heteroaryl group or a substituted heteroaryl group by 1-5 groups selected from halogen, C1-26 alkyl, C1-3 halogenated alkyl, O—C1-3 alkyl, hydroxyl, amino, nitro, cyano group, aldehyde group and ester group; the heteroaryl group is a 3-10-membered heteroaryl group including N, S, O, or a combination thereof.

Abstract: The present disclosure provides method and apparatus for providing emotional care in a session between a user and an electronic conversational agent. A first group of images may be received in the session, the first group of images comprising one or more images associated with the user. A user profile of the user may be obtained. A first group of textual descriptions may be generated from the first group of images based at least on emotion information in the user profile. A first memory record may be created based at least on the first group of images and the first group of textual descriptions.

Abstract: The pH-responsive ultrasensitive fluorescent nanoprobe is composed of pH-responsive matrix materials and fluorescent organic small molecule dyes. The pH-responsive matrix materials are calcium phosphate, calcium hydroxyphosphate, fluorapatite, calcium carbonate or ZIF series; the fluorescent organic small molecule dyes are positively charged dyes or negatively charged dyes. The preparation method includes: coating a positively charged dye with a negatively charged matrix material; coating a negatively charged dye with a negatively charged matrix material; and coating a negatively charged dye with a positively charged matrix material.

Abstract: An apparatus for limiting pipette motion, the apparatus comprising: (1) a stand for controlling spatial positions; (2) a mechanism for temporally coupling the pipette with the stand; the orientation or the movement of the pipette being restricted by the stand as predetermined for (a) limiting the insertion depth of the pipette tips into sample containers, (b) restricting unwanted movements or rotations of the pipette, or (c) maintaining the desired alignments of the pipette tips with the sample containers. Methods of limiting pipette motion or rotation are also provided.

Abstract: A toilet brush holder comprising a holder body and a barrel body, wherein the barrel body is movably sleeved with the holder body, and an elastic member is arranged between the holder body and the barrel body. The holder body is hinged with barrel covers which are opened and closed along with up-down movement of the barrel body. The barrel body comprises an inner barrel arranged in the holder body, and the holder body comprises a ventilation hole. When the toilet brush is placed in the inner barrel, the barrel body moves down relative to the holder body, propelling the barrel covers closed at the holder body, and allowing the inner barrel to communicate with exterior of the holder body through the ventilation hole. The ventilation hole allows residual water left on the toilet brush to be quickly drained and prevents the breeding of bacteria and generation of foul smell.

Abstract: A method for mass spectral analysis of molecules based on full mass spectral profile or raw scan mode data, comprising the steps of specifying the basic building blocks for the molecule; estimating initial values including trial numbers of building blocks, charge states, and possible modifications; calculating discrete isotope distributions based on elemental compositions; calculating a profile mode theoretical mass spectrum using a target mass spectrum peak shape function; performing regression analysis between acquired profile mode mass spectrum data and calculated theoretical mass spectrum data and reporting regression statistics; using regression statistics as feedbacks to update initially estimated values including trial numbers of building blocks, charge states, and possible modifications; and repeating selected step to optimize the regression statistics. A mass spectrometer operating in accordance with the method.

Abstract: A method, mass spectrometer and computer readable medium for acquiring mass spectral data in raw profile; detecting presence of compounds and relevant time window; performing multivariate statistical analysis of raw profile data in a time window to determine compounds; obtaining separation time profiles for detected compounds containing respective time locations in a time window; and computing pure mass spectra for compounds based on separation time profiles or time locations. A method, mass spectrometer and computer readable medium for acquiring mass spectral data in raw profile of a known and unknown sample; combining mass spectral scans for a sample into a single mass spectrum across a separation time window; performing multivariate statistical analysis of the acquired mass spectral data and computing a distance measure between the known and unknown sample; and using the distance measure as an indication for an unknown sample belonging to a known sample or sample group.

Abstract: The present disclosure provides method and apparatus for providing emotional care in a session between a user and an electronic conversational agent. A first group of images may be received in the session, the first group of images comprising one or more images associated with the user. A user profile of the user may be obtained. A first group of textual descriptions may be generated from the first group of images based at least on emotion information in the user profile. A first memory record may be created based at least on the first group of images and the first group of textual descriptions.

Abstract: A polysubstituted benzene compound, preparation method thereof, and method of using the same. The compound has a formula I or I?, where X represents carbon, sulfur, or oxygen; R1 represents a C1-16 alkyl, C2-16 alkenyl, or C2-10 alkynyl; R2 represents hydrogen, halogen, C1-16 alkyl, C2-16 alkenyl, or C2-10 alkynyl; or an aryl group or a substituted aryl group by 1-5 groups selected from halogen, C1-26 alkyl, C1-3 halogenated alkyl, O—C1-3 alkyl, hydroxyl, amino, nitro, cyano group, aldehyde group and ester group; or a heteroaryl group or a substituted heteroaryl group by 1-5 groups selected from halogen, C1-26 alkyl, C1-3 halogenated alkyl, O—C1-3 alkyl, hydroxyl, amino, nitro, cyano group, aldehyde group and ester group; the heteroaryl group is a 3-10-membered heteroaryl group including N, S, O, or a combination thereof.

Abstract: A method for analyzing data from a mass spectrometer comprising acquiring raw profile mode data containing one or more ions and their isotopes in a mass spectral range; calculating theoretical isotope distributions for all ions of interest including native or labeled ions based on their molecular composition; convoluting the theoretical isotope distributions with target peak shape function specified during instrument calibration, actual peak shape functions, or approximated peak shape functions, to obtain theoretical isotope profiles for all ions; constructing a peak component matrix of relevant theoretical isotope profiles included as peak components; performing a weighted multiple linear regression between the profile mode data and the peak component matrix; and reporting regression coefficients as relative concentrations for each of the ions, or ranking these ions based on fitting statistics as search results. A mass spectrometer system (FIG. 1) operating in accordance with the method.

Abstract: A method, mass spectrometer and computer readable medium for acquiring mass spectral data; comprising acquiring mass spectral data in a raw profile mode; selecting a relevant time window for presence of compounds of interest; performing multivariate statistical analysis of mass spectral raw profile mode data in a time window to determine the number of compounds present; computing a pure profile mode mass spectra for all compounds of interest corresponding to their respective separation time profiles or time locations; searching a mass spectral library for the identification of the compounds; and adding the correctly identified compounds and corresponding profile mode mass spectra to existing mass spectral library and/or newly created profile mode mass spectral library. Implementation can be on a server located amongst a network, such as the internet, of computers, devices, and MS instruments. Users are exposed to advertising relevant to the compounds analyzed and can obtain subscriptions to library updates.

Abstract: An apparatus and a computer-implemented method for processing data are disclosed. The apparatus comprises a memory device that stores first history data, and at least one processor configured to receive input data, determine a relationship between the first history data and one or more portions of the input data, generate one or more reference tokens reflecting the relationship, and transmit the one or more reference tokens to a recipient device.

Abstract: An apparatus for processing data comprises a memory device storing history data, and at least one processor configured to transmit a first message to a recipient device to initiate a transmission of one or more tokens, acquire a second message, from the recipient device, to confirm that the recipient device is capable of processing the one or more tokens, and responsive to the confirmation, acquire configuration information for generating the one or more tokens. The apparatus is further configured to receive input data, identify one or more data chunks in the history data, locate a part of the input data that is redundant in the history data by searching among the one or more data chunks, generate the one or more tokens reflecting a relationship between the part of the input data and the history data, and transmit the one or more tokens to the recipient device.