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531 results about "High-performance liquid chromatography" patented technology

High-performance liquid chromatography (HPLC; formerly referred to as high-pressure liquid chromatography) is a technique in analytical chemistry used to separate, identify, and quantify each component in a mixture. It relies on pumps to pass a pressurized liquid solvent containing the sample mixture through a column filled with a solid adsorbent material. Each component in the sample interacts slightly differently with the adsorbent material, causing different flow rates for the different components and leading to the separation of the components as they flow out of the column.

Method for improving area crosstalk of HPLC (High Performance Liquid Chromatography) and micropower wireless dual-mode communication

The invention discloses a method for improving transformer area crosstalk of HPLC (High Performance Liquid Chromatography) and micropower wireless dual-mode communication, which comprises the following steps of: S1, electrifying an acquisition terminal equipment node, and aligning signal acquisition time windows of two communication modes; s2, combining the obtained dual-mode signal parameters with a preset transformer area topology database to generate feature vectors of multi-dimensional features; s3, training to generate a random forest model, inputting feature vectors of multi-dimensional features, dynamically calculating the affiliation weight value of the transformer area, and carrying out nonlinear weighted calculation on the feature vectors; and S4, on the basis of weight comparison and transformer area boundary node processing, correcting measurement errors by combining the transformer area attribution weight value with a preset impedance shielding compensation algorithm, generating a unique transformer area identifier, locking a networking relationship, and executing transformer area attribution judgment. According to the method, the wide coverage advantage of HPLC is reserved, meanwhile, the space attenuation characteristic of wireless communication is used for achieving accurate recognition of the transformer area boundary, and the installation and acquisition stability of the use and acquisition terminal equipment can be improved.
Owner:CSG SMART SCI&TECH CO LTD +1

Network communication dynamic optimization method based on multi-module collaboration

The invention discloses a network communication dynamic optimization method based on multi-module collaboration, and relates to the technical field of network communication, a dual-mode communication module is deployed at each network node, and the network communication dynamic optimization method comprises the following steps: each network node broadcasts own existence information and power line channel characteristics through an HPLC (High Performance Liquid Chromatography) channel of the dual-mode communication module; each network node scans surrounding wireless networks through an HRF channel of the dual-mode communication module and reports own wireless channel quality information to the gateway; the global state sensing module collects all information and constructs a global network view containing physical topology and a channel quality map. A dual-mode cooperation mechanism, a machine learning prediction model and a dynamic decision strategy can adapt to complex dynamic environments such as power line noise fluctuation and wireless interference change, and communication parameters can be autonomously optimized without manual intervention; and meanwhile, the modular design is convenient to expand to a multi-mode communication scene, and has a wide application prospect.
Owner:SICHUAN ZHONGWEINENG POWER TECH CO LTD

Electric power topology self-adaptive reconstruction and energy consumption optimization control method for HPLC (High Performance Liquid Chromatography) communication

The invention relates to the technical field of intelligent power grid communication, and discloses an HPLC communication-oriented power topology adaptive reconstruction and energy consumption optimization control method, which comprises the following steps of: acquiring HPLC communication characteristic data of power network nodes in real time; constructing a dynamic spatio-temporal topological graph based on the communication feature data and predicting a future topological state; generating a communication power distribution and routing path joint optimization strategy by using a multi-target reinforcement learning algorithm in combination with the predicted future topology state and the real-time energy consumption parameter; verifying the electromagnetic compatibility and protocol compliance of the optimization strategy through a digital twin model, and generating a control instruction which can be executed by equipment; and the transmitting power and the communication route of the HPLC node are dynamically adjusted through the control instruction. According to the method, the communication quality stability and the energy efficiency level are improved, topology dynamic perception, multi-target collaborative optimization and strategy security verification are realized, and efficient and reliable operation of HPLC communication in a complex power grid environment is guaranteed.
Owner:BEIJING DEWEIBEST TECH CO LTD

Frequency offset correction algorithm in HPLC + HRF dual-mode communication

The invention relates to the technical field of ecological system service function evaluation. The invention relates to a frequency offset correction algorithm in HPLC (High Performance Liquid Chromatography) + HRF (High Radio Frequency) dual-mode communication. The method comprises the following steps: S1, collecting phase sequence data from an HPLC communication link, collecting frequency offset estimation data and corresponding confidence data from an HRF communication link, and adaptively adjusting a preset detection threshold value of the phase sequence data according to the confidence data; s2, performing pulse abnormal sample point detection and elimination on the phase sequence data according to the adjusted preset detection threshold value; according to the method, the detection threshold is dynamically adjusted through the confidence data, so that the anomaly detection process can be matched with the current interference environment in real time, the integrity of the phase sequence data is maintained, and the problem of insufficient adaptability of a fixed detection threshold in an electromagnetic interference dynamic change scene is solved; and a more reliable phase data basis is provided for subsequent interpolation compensation and frequency offset estimation, so that the frequency offset correction precision of the dual-mode communication system is improved.
Owner:ZHONGKE GUOYUAN (LIAONING) ELECTRONIC TECH CO LTD

Communication control method based on power carrier dual-mode communication module

The invention relates to the technical field of power line carrier communication control, in particular to a communication control method based on a power line carrier dual-mode communication module, which comprises the following steps of: S1, constructing a channel quality dynamic scoring model and outputting a channel quality score by collecting data packets of HPLC (High Performance Liquid Chromatography) and HRF (High Frequency Radio Frequency) carrier channels in real time; s2, establishing a dual-mode communication time period dynamic decision algorithm, setting a dynamic threshold value at the same time, and automatically triggering a dual-mode communication time period forward mechanism according to the channel quality score; when the method is used, the dual-mode verification strategy is intelligently adjusted according to the real-time communication state, the verification frequency and duration can be conveniently improved in the serious interference time period, the overall communication reliability and the data accuracy can be improved, the adoption of the dual-mode verification strategy in the fixed time period is avoided, and meanwhile, the verification efficiency is improved. When the channel quality is good, the communication burden is reduced, the communication efficiency is improved, and the purpose of considering both stability and high efficiency is achieved.
Owner:SHENZHEN FUYOU MAGNESIUM TECH CO LTD

Electric power Internet of Things minute-level data acquisition method based on hierarchical time synchronization

The invention provides an electric power internet of things minute-level data acquisition method based on hierarchical time synchronization, which comprises the following steps of: 1, dividing an HPLC (High Performance Liquid Chromatography) channel into a time synchronization time slot and a data uploading time slot, and dynamically adjusting the bandwidth proportion of the time synchronization time slot and the data uploading time slot; 2, clock skew compensation is completed through bidirectional message interaction of the master node and the slave node, and a uniform minute-level time framework of the whole network is established; step 3, based on the local clock calibrated by the terminal equipment, calculating an accurate acquisition triggering moment by combining the distributed offset parameters, and when a preset time slot is reached, automatically executing instantaneous sampling of data; and 4, constructing a priority evaluation model based on the voltage abrupt change rate and the emergency level, calculating data acquisition priorities in real time, and executing corresponding operations according to different priorities. According to the method, active preemptive transmission of fault feature data in a single acquisition period is realized through a dynamic priority model in which the voltage break rate is linked with the event level.
Owner:NANTONG UNIV

HPLC and HRF dual-mode communication hybrid data transmission control method

The invention relates to the technical field of power grid communication, and discloses an HPLC (High Performance Liquid Chromatography) and HRF (High Radio Frequency) dual-mode communication hybrid data transmission control method, which comprises the following steps of: 1, initializing hardware parameters of an HPLC module and an HRF module, and configuring a frequency band range of a power line coupler and a radio frequency front end; step 2, dynamically calibrating fractional order model parameters of the dual-mode channel based on frequency band ranges of the HPLC module and the HRF module; and step 3, analyzing the service type of the data packet by using the fractional order model parameters, and calculating the four-dimensional QoS demand weight. According to the technical scheme, the technical scheme of four-dimensional QoS dynamic weight distribution and fractional order HJB equation optimization is adopted, and the technical effect of cooperative control and dynamic optimization of multi-dimensional service quality is achieved. The method solves the problems that a traditional method cannot meet the requirements of real-time performance, reliability, energy efficiency and safety at the same time in a time-varying channel environment, and resource allocation is rigid due to fixed weight.
Owner:SHENZHEN HUATENG INTELLIGENT TECH CO LTD

Short peptide from undaria pinnatifida and application thereof

The invention discloses an oligopeptide from undaria pinnatifida and application thereof. The amino acid sequence of the oligopeptide is YRKD, and the molecular weight is 580.63 g / mol. The polypeptide is identified from undaria pinnatifida through a high performance liquid chromatography technology for the first time, and an unreported oligopeptide capable of inhibiting tyrosinase and cooperating with vitamin C to synergistically inhibit tyrosinase is screened out. The oligopeptide derived from undaria pinnatifida is synthesized by a solid phase method, has the characteristics of safety, no toxicity, good water solubility and good stability, and is combined with vitamin C to generate a synergistic effect and synergistically increase the inhibition effect on tyrosinase, so that the oligopeptide can achieve a better tyrosinase inhibition effect at a lower and more stable concentration; the use concentration of the oligopeptide can be greatly reduced, the stability is enhanced, and the oligopeptide can be widely applied to preparation of cosmetics, medicines, health-care products or food additives, and has important economic value and social significance.
Owner:GUANGZHOU TAIWEI FEED CO LTD

Anti-hair loss and hair growth peptide with alternately arranged D / L amino acids as well as preparation method and application of anti-hair loss and hair growth peptide

ActiveCN120554457ACosmetic preparationsHair cosmeticsRink amide resinCatenin Proteins
The invention relates to an anti-hair loss and hair growth peptide with alternately arranged D / L amino acids as well as a preparation method and application of the anti-hair loss and hair growth peptide, and belongs to the technical field of biological medicines. The amino acid sequence of the polypeptide is shown as SEQ ID NO: 1, D-type and L-type amino acids are alternately arranged and designed, the protease degradation resistance is remarkably enhanced, the in-vitro half-life period is larger than or equal to 48 hours, and beta-catenin protein expression in hair follicle stem cells is activated. The preparation method comprises the following steps: taking Rink Amide resin as a carrier, sequentially coupling D / L type amino acid by adopting an Fmoc solid-phase synthesis method, cracking the resin by trifluoroacetic acid, and purifying by high performance liquid chromatography, so that the yield is more than or equal to 80%, the purity is more than or equal to 96%, and the molecular weight is confirmed to be 956.12 Da by mass spectrometry. The polypeptide can be applied to preparation of anti-hair loss and hair growth cosmetics, medicines and medical instruments, and effectively solves the problems of low stability and insufficient targeting of the polypeptide in the prior art. # imgabs0 #
Owner:DO YOU KNOW MEILI BIOTECHNOLOGY (SICHUAN) CO LTD

Method for preparing a liquid composition containing Compound I and use thereof in myocardial perfusion PET imaging

The present application provides a method for preparing a liquid composition containing Compound I, which comprises a step of purifying a crude product containing Compound I by high performance liquid chromatography, and its use in myocardial perfusion PET imaging, wherein the mobile phase used in the purification step by high performance liquid chromatography contains ethanol and water. By optimizing the process parameters and process flow, it can be applied to large-scale batch activity production and meet the needs of automation. The resulting myocardial perfusion PET contrast agent has high radiochemical purity, high activity concentration, good product stability, and high and stable yield or output.
Owner:BEIJING SINOTAU INT PHARMA TECH CO LTD

Chicken deterioration marker screening and AICAR prediction method and system based on multi-task learning and transfer learning

The invention provides a chicken deterioration marker screening and AICAR prediction method and system based on multi-task learning and transfer learning. The method comprises the following steps: selecting chicken samples with different storage conditions and shelf lives, collecting metabolite data of multiple batches, and carrying out quantitative analysis on the metabolite by utilizing high performance liquid chromatography (HPLC), gas chromatography-mass spectrometry (GC-MS), liquid chromatography-mass spectrometry (LC-MS) and other technologies. Through the multi-task learning model, multiple differential metabolites are deeply mined, and the prediction precision and the calculation efficiency are improved. And providing chicken storage period optimization suggestions according to the AICAR predicted value. The innovative method and system can significantly improve scientificity and accuracy of chicken quality evaluation, have wide application prospects, and are especially suitable for the fields of food quality monitoring, supply chain management and intelligent storage and transportation.
Owner:JIANGSU INST OF POULTRY SCI

Industrial lighting method and system based on HPLC (High Performance Liquid Chromatography) broadband power line carrier

The invention discloses an industrial lighting method based on an HPLC broadband power line carrier, and the method comprises the following steps: S1, obtaining all scene information of a factory production line, the scene information comprising lighting demands corresponding to different processes and different time periods of the production line; s2, formulating an illumination strategy according to a corresponding illumination demand, and storing the illumination strategy in the control platform; s3, acquiring data information in the scene through an acquisition module, transmitting the data information to a control platform through an HPLC (High Performance Liquid Chromatography) broadband power line carrier communication module, analyzing the data information through the control platform, calling a proper lighting strategy, sending a corresponding instruction through the PLC broadband power line carrier communication module, and lighting the current scene; in conclusion, the defects in the prior art are overcome, remote control, debugging and maintenance of the lighting equipment can be achieved through the HPLC broadband power line carrier technology, the flexibility and response speed of the lighting system are greatly improved, and the high social use value and application prospects are achieved.
Owner:GUODIAN LIAOCHENG POWER GENERATION CO LTD

Establishment method and application of white kidney bean HPLC (High Performance Liquid Chromatography) fingerprint spectrum

The invention discloses establishment and application of a white kidney bean HPLC (High Performance Liquid Chromatography) fingerprint spectrum. The HPLC fingerprint spectrum of 114 batches of white kidney bean methanol extracts from different geographical sources is established, 9 common peaks are identified, and the spectrum-effect relationship between the 9 characteristic peaks of the HPLC fingerprint spectrum and the alpha-amylase inhibition rate is established through grey correlation analysis and partial least squares regression analysis. The invention finds that the myricetin component is highly correlated with the activity index of the alpha-amylase inhibitor and is possibly a key component of the hypoglycemic activity of the white kidney beans, and provides methodological reference for evaluating the hypoglycemic activity and quality control of the white kidney beans and also provides reference for development and utilization of the white kidney beans.
Owner:DALI UNIV

Method for extracting ecdysterone in Cyanotis arachnoidea through eutectic solvent

The invention discloses a method for extracting ecdysterone from cyanotis arachnoidea by using a deep-eutectic solvent, and belongs to the technical field of ecdysterone extraction. The method comprises the following steps: mixing a deep-eutectic solvent which takes choline chloride and a hydrogen bond donor material as raw materials with water, extracting ecdysterone in roots and stems of Cyanotis arachnoidea to obtain an ecdysterone crude extract, precipitating the ecdysterone crude extract by adding water, filtering, and adsorbing ecdysterone by using macroporous resin. Adding water for elution to obtain a deep-eutectic solvent-water mixed solution, and recovering under reduced pressure to obtain an extraction solvent for cyclic utilization; and eluting by using alcohol with different concentrations to obtain an ecdysterone crude extract, and purifying the crude extract to obtain high-purity ecdysterone. Compared with a conventional extraction method, the process method adopted by the invention has the advantages that the process is simple, efficient, green and environment-friendly, the used eutectic solvent can be recycled, the loss caused by heating volatilization in the extraction process is avoided, the ecdysterone extracted by the method is pure white, the content of ecdysterone can reach 90% or above after simple purification, and the method is suitable for industrial production. After re-purification, the purity of ecdysterone detected by high performance liquid chromatography is up to 98% or above.
Owner:SOUTHWEST FORESTRY UNIVERSITY

Efficient dual-mode communication method and system for HPLC (High Performance Liquid Chromatography)

The invention discloses an efficient HPLC dual-mode communication method and system, and relates to the technical field of communication analysis, and the method comprises the steps: obtaining service request data and channel state data in a dual-mode network; performing service priority classification based on the service request data so as to obtain service priority data, and performing channel quality evaluation based on the channel state data so as to obtain channel quality data; performing service and channel dynamic matching analysis according to the service priority data and the channel quality data to obtain dynamic matching strategy data, and performing scheduling queue optimization based on the dynamic matching strategy data to obtain optimized scheduling queue data; and performing a dual-mode channel switching decision according to the optimized scheduling queue data, generating channel switching decision data, performing service data transmission control through the channel switching decision data, obtaining service data transmission control data, and further realizing dual-mode communication according to the service data transmission control data. The dual-mode communication method has the effect of improving the dual-mode communication efficiency.
Owner:XIAMEN MINGHAN ELECTRIC

Method for simultaneously determining eight aminoglycoside antibiotics in cosmetics

PendingCN120275536AComponent separationHygromycin BAntibiotic drug
The invention provides a method for simultaneously determining eight aminoglycoside antibiotics in cosmetics, and belongs to the technical field of medicines. By optimizing an HPLC-MS / MS (High Performance Liquid Chromatography-Mass Spectrometry / Mass Spectrometry) method, a method capable of simultaneously determining spectinomycin, tobramycin, kanamycin B, kanamycin, hygromycin B, streptomycin, dihydrostreptomycin and amikacin in cosmetics is established. The method is good in specificity, the eight aminoglycoside antibiotics can be effectively separated, interference of solvents and matrixes in cosmetics is avoided, and the accuracy of a detection result is ensured; within the range of 5-500 ng.mL <-1 >, a good linear relation is achieved, and the content of antibiotics in cosmetics can be accurately reflected; target antibiotics can still be reliably detected and quantified at low concentration; the method is good in precision and high in recovery rate and repeatability. The method provides reliable technical support for cosmetic risk monitoring, and provides scientific basis for perfecting related detection standards and supervision policies.
Owner:CHENGDU INST OF DRUG CONTROL

HPLC and wireless dual-mode communication method, system and device and storage medium

The invention relates to the technical field of communication, in particular to an HPLC (High Performance Liquid Chromatography) and wireless dual-mode communication method and system. The method comprises the following steps: a CCO executes a decision according to local configuration information and a channel request field in an association request message sent by an STA, and indicates the STA to be configured in a single-channel communication mode or a dual-channel communication mode; a dual-channel interaction time slot is distributed for the STA supporting dual-channel communication in a TDMA time slot area, and an HPLC channel and a wireless channel are allowed to transmit data in parallel; synchronously monitoring a dual-channel state in a CSMA time slot, and dynamically selecting dual channels or degrading to a single channel according to the states of an HPLC channel and a wireless channel; according to the transmission rate inverse ratio relation of the HPLC channel and the wireless channel, messages to be sent are distributed to the two channels to be transmitted respectively, and then the messages are recombined. According to the invention, the bandwidth utilization rate is improved by adopting a load sharing mode, a dual-channel communication mode and a degradable single-channel communication mode are provided, and channel resources are effectively utilized.
Owner:WUHAN BINARY SEMICON CO LTD

Efficient data transmission method for HPLC (High Performance Liquid Chromatography) dual-mode communication

The invention discloses an efficient data transmission method for HPLC (High Performance Liquid Chromatography) dual-mode communication, relates to the technical field of data transmission, and solves the problems that when low-priority tasks are congested, an undifferentiated transfer strategy is adopted, task importance grading is not considered, and transmission of important low-priority tasks is interrupted; in order to solve the technical problem that congestion is difficult to relieve due to lack of dynamic monitoring and feedback after transfer, the method comprises the following steps of: finely dividing task priorities; a high-priority task adopts a dual-mode parallel transmission and first arrival effective mechanism, so that the transmission success rate is improved; low-priority tasks are scheduled in a hierarchical manner according to secondary priorities, the resource utilization rate is improved, the transmission interruption rate of the important low-priority tasks is reduced by quantifying the secondary priorities of the low-priority tasks, adopting a hierarchical transfer strategy and combining dynamic monitoring and feedback, and a time slot and bandwidth cooperative adjustment mechanism of HPLC and HRF is established; smooth bandwidth transition is realized through dynamic subcarrier binding and hybrid modulation, and resource waste is avoided in combination with global resource pool management.
Owner:北京远界科技有限公司

Screening method for regenerating PET (polyethylene terephthalate) and PTA (pure terephthalic acid) by chemical or enzymatic method

The invention provides a chemical or enzymic method regenerated PET and PTA screening method, which comprises the following steps: pretreating a PET or PTA sample 1, and measuring the content of p-toluic acid, the content of p-carboxybenzaldehyde and the content of m-terephthalic acid by using high performance liquid chromatography; the method comprises the following steps: pretreating a PET or PTA sample 2, pretreating by using a high-temperature pyrolysis method, and measuring an isotope ratio of oxygen-18 to oxygen-16 by using an isotope ratio mass spectrometer; the method comprises the following steps: calculating a cleanliness index, an oxy-18 index and a bottle flake index by using a formula based on a test result, and classifying PET and PTA samples through a decision tree according to the indexes; combining and mixing the PET and PTA products based on the classification result and the requirements of downstream customers on the regeneration method and the regenerated material content; the method is convenient, accurate and reliable, the classification result is objective, the screening efficiency of PET and PTA regenerated by a chemical or enzyme method can be improved, and the economic cost is saved.
Owner:NANJING SUXIN TECHNOLOGY CO LTD

Method for identifying mulberry leaf silkworm rearing and feed silkworm rearing raw silk based on HPLC (High Performance Liquid Chromatography) fingerprint spectrum

The invention discloses a method for identifying mulberry leaf silkworm rearing and feed silkworm rearing raw silk based on an HPLC (High Performance Liquid Chromatography) fingerprint spectrum. The method comprises the following steps: sample collection: respectively collecting a mulberry leaf silkworm rearing raw silk sample and a feed silkworm rearing raw silk sample; pre-treating the sample; performing HPLC (high performance liquid chromatography) analysis; constructing a fingerprint spectrum; and evaluating and identifying the similarity. The invention belongs to the technical field of silk identification, and particularly provides a mulberry leaf silkworm rearing and feed silkworm rearing raw silk identification method based on an HPLC (High Performance Liquid Chromatography) fingerprint spectrum so as to solve the problem that mulberry leaf silkworm rearing and feed silkworm rearing raw silk are difficult to accurately distinguish by an existing raw silk identification method. And the problems of incomplete analysis, poor result repeatability and the like of the existing raw silk identification method based on the HPLC technology are solved.
Owner:HUZHOU QUALITY & TECH SUPERVISION & INSPECTION INST (HUZHOU FIBER QUALITY MONITORING CENT)

Method for detecting deficiency of mobile phase solution through degassing unit

The invention discloses a method for detecting deficiency of a mobile phase solution through a degassing unit, and belongs to the technical field of liquid chromatographic analysis. According to the method, a standard degassing unit in a (U) HPLC (High Performance Liquid Chromatography) system is used for judging whether a mobile phase is lost or not by monitoring the change rate (delta P / t) of the pressure difference inside and outside a degassing cavity while a solvent degassing function is completed. The method specifically comprises the steps that when the degassing pump stops working, the pressure difference change is detected through a pressure difference sensor; calculating a differential pressure change rate according to a preset mathematical model, and comparing the differential pressure change rate with a threshold value; and when it is judged that the mobile phase is lost, alarming or shutdown is triggered. According to the invention, the existing degassing unit hardware is reused, an additional detection device is not needed, and low-cost and high-reliability mobile phase monitoring is realized. According to the method, an anti-misjudgment mechanism is specially arranged and comprises judgment of the delta P / t change trend in the initial degassing stage, detection shielding under the high-flow-speed working condition and bubble tolerance adjustment, and the false alarm condition is effectively avoided.
Owner:ACCHROM TECH CO LTD

Method for determining impurity content in OAB-14 by high performance liquid chromatography

The invention belongs to the technical field of medicine detection, and particularly relates to a method for determining the content of impurities in OAB-14 by using high performance liquid chromatography. The method comprises the following steps: preparing a test sample labeling solution, a test sample solution and a contrast solution of OAB-14, respectively injecting the test sample labeling solution, the blank solution, the contrast solution and the test sample solution into a liquid chromatograph, recording chromatograms, and calculating according to a main component self-contrast method to obtain the content of impurities in the test sample solution; wherein the impurities are one or more of an impurity A, an impurity B, an impurity C, an impurity D, an impurity E or an impurity F. According to the method, the impurities in the OAB-14 can be qualitatively and quantitatively measured at the same time, the stability and the reproducibility are good, the separation degree between a main peak and each impurity peak is good, the precision is high, and an analysis means is provided for quality control of the OAB-14.
Owner:SHANDONG XINHUA PHARMA CO LTD

HPLC signal processing method based on bit loading

The invention discloses an HPLC (High Performance Liquid Chromatography) signal processing method based on bit loading, and belongs to the technical field of power line carrier communication. The HPLC signal processing method based on bit loading comprises the following steps: reading bit data from a channel interleaving module, and sequentially writing the bit data into a first bit buffer queue according to a preset read bit number of the channel interleaving module; in the bit loading mode, aiming at the modulation mode corresponding to each subcarrier, determining a target bit number required to be filled by each subcarrier; different modulation modes correspond to different target bit numbers; and sequentially reading the bit data of the target bit number from the first bit buffer queue according to the write-in sequence, and mapping the bit data read as required to the corresponding subcarrier for modulation and transmission. According to the invention, rate efficient matching of data processing in a bit loading mode and data transmission without subcarrier cross-physical blocks are realized.
Owner:SUZHOU GATE-SEA MICROELECTRONICS TECH CO LTD

Dual-mode communication chip

The invention discloses a dual-mode communication chip, and belongs to the technical field of communication. The dual-mode communication chip comprises an HPLC (High Performance Liquid Chromatography) signal transmitting end and an HPLC signal receiving end; the HPLC signal transmitting end is configured as a coding module and is used for coding the load data to obtain coded load data; the first storage module is used for storing the coded load data; the channel interleaving module is used for carrying out interleaving processing on the bit data read out from the first storage module; the first bit buffer queue is used for sequentially writing the bit data from the channel interleaving module according to a first bit number and sequentially reading the bit data according to a writing sequence according to a second bit number; and the bit mapping module is used for mapping the bit data from the first bit buffer queue to each subcarrier with a second bit number. According to the invention, rate efficient matching of data processing in a high-order modulation mode and data transmission without subcarrier cross-physical blocks are realized.
Owner:SUZHOU GATE-SEA MICROELECTRONICS TECH CO LTD

Method for detecting contents of main components of protein and composite adjuvant in recombinant chicken pox-herpes zoster vaccine and application

The invention discloses a method for detecting the contents of main components of proteins and composite adjuvants in a recombinant varicella-herpes zoster vaccine and application of the recombinant varicella-herpes zoster vaccine. Comprising the following steps: preparing a protein calibration standard solution sample; preparing a QS-21 calibration standard solution sample; preparing a dioleoyl phosphatidylcholine and cholesterol calibration standard solution sample; preparing a detection sample; loading the sample into a liquid chromatograph, and operating an analysis method; and calculating the contents of main components of proteins and adjuvants in the vaccine. The method is a high performance liquid chromatography method capable of simultaneously detecting the contents of protein, dioleoyl phosphatidylcholine, cholesterol and saponin QS-21 in the vaccine. According to the method, the contents of protein, dioleoyl phosphatidylcholine, cholesterol and saponin QS-21 in the vaccine can be accurately detected only through one-time detection, and the vaccine verification efficiency is greatly improved.
Owner:CHENGDU OLYMVAX BIOPHARM +1

A method for preparing a ruthenium-grafted manganese-aluminum hydrotalcite and catalyzing hydrogenation of co2 to form formic acid

The application discloses a kind of ruthenium grafting manganese aluminum hydrotalcite and catalytic method for C02 hydrogenation preparation formic acid, belong to catalyst technical field, in the application, under the optimized reaction condition, with methanol:water mixture as solvent (5:1), total pressure is 60bar, 60 DEG C, reaction 24 hours, with temperature controller to be heated to the temperature required for reactor.When the temperature inside the reactor reaches the specified temperature, start stirring at a fixed stirring speed (200-800 revolutions / min), after the required reaction time, stop stirring and heating, and allow the reactor to cool to room temperature. The hydrogenation products were analyzed by high performance liquid chromatography, the conversion number (TON) of formic acid reached more than 8000; RuMnAl-LDH was prepared by coprecipitation method, and RuMnAl hydrotalcite catalyst was obtained by heating and activation in a muffle furnace. The preparation process is simple, and the raw materials are easy to obtain. The RuMnAl-LDH catalyst prepared by the application has good catalytic activity and stability in the catalytic hydrogenation of formic acid to formic acid reaction, and has wide application prospect.
Owner:SHANDONG UNIV +1

Processing method and quality control method for toxicity reduction and efficacy enhancement of Lingshi

The invention relates to the technical field of traditional Chinese medicines, in particular to a processing method and a quality control method for toxicity reduction and efficacy enhancement of radix cynanchi bungei. According to the method, the content of alangiine, the content of ellagic acid, the common peak area of characteristic peaks and the content of water-soluble extracts in the wine-roasted berberis scenting decoction pieces are measured by adopting a high performance liquid chromatography (HPLC) method, and subjective assignment is carried out on the characters of the wine-roasted berberis scenting decoction pieces by combining Delphi evaluation to serve as evaluation indexes; the method comprises the following steps: determining the weight coefficient of each index by adopting an analytic hierarchy process-index repeatability correlation mixed weighting method (AHP-CRITIC), and screening the optimal wine roasting process of the Zhuang medicine Tibetan scene by combining the three factors of the frying temperature, the frying time and the yellow wine amount with star point design (CCD)-effect surface (RSM) according to the coefficients. And finally determining the optimal process of stir-frying the radix berberidis with wine as follows: the stir-frying temperature is 150 DEG C, the stir-frying time is 16min, the amount of yellow rice wine is 10%, and moistening is performed for 24h.
Owner:GUANGXI UNIV OF CHINESE MEDICINE

Method and system for quantitatively distinguishing peels of soft-branch rootstock oranges and processing type oranges

The invention relates to the technical field of fine processing of agricultural products, and provides a method and a system for quantitatively distinguishing peels of soft-branch stock oranges and processing type oranges, and the method comprises the following steps: S1 to S4, selecting two types of mature oranges, freeze-drying and grinding peels, and mixing the peels according to a preset proportion to obtain peel residues; weighing the same amount of the sample, adding methanol, and carrying out ultrasonic extraction, centrifugation and filtration by a filter membrane to obtain a to-be-detected solution; and calculating the proportion of the polyoxymethylene flavone glycoside in the soft-branch rootstock orange peel through HPLC (High Performance Liquid Chromatography) detection by combining an integral peak area of a standard curve of the polyoxymethylene flavone glycoside. The invention further discloses a system for executing the method. According to the method, the polyoxymethylene flavone glycoside is used as an index, HPLC detection and standard curve calculation are combined, whether the fruit peel is contained or not can be clearly distinguished, the proportion can be accurately quantified, an objective traceable basis is provided, the cost is low, the popularization rate is high, the sample treatment process is applicable, and a safe and reliable scheme is provided for high-value utilization and quality control of by-products in the citrus industry.
Owner:衢州市农业林业科学研究院

A kind of clear-fried licorice formula granule and its preparation method and quality control method

This application provides a stir-fried licorice formula granule, its preparation method, and quality control method. The method comprises: the stir-fried licorice formula granule is prepared from stir-fried licorice slices as raw material through water extraction, vacuum concentration, drying, and granulation. Each gram of formula granule is equivalent to 1.7-2.1 grams of stir-fried licorice slices, wherein the glycyrrhizin content is not less than 1.0%, and the glycyrrhizic acid content is not less than 2.1%. This invention also establishes a comprehensive quality control method for the formula granules. High-performance liquid chromatography (HPLC) is used to determine the content of key components, combined with chemical fingerprinting to evaluate overall chemical consistency, and physical fingerprinting is introduced to monitor the physical stability of the granules, forming a three-in-one quality control system of "component-chemistry-physics". This invention fills the technological gap in stir-fried licorice formula granules and provides a complete solution for their standardized production and safe and effective application.
Owner:JIANGXI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE