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44results about How to "Reduce the significance" patented technology

Split-band encoding and decoding of an audio signal

For enabling an improved reconstruction of a high frequency band of an audio signal in a split-band coding approach, a value representative of a background noise level in an audio signal that is to be encoded is determined. Further, a gain value for the higher frequency band is determined. Further, a correction factor for the determined gain value is determined based on the determined value representative of the background noise level. The correction factor may be used at an encoding end for correcting the gain value before a corresponding codebook index is provided to a decoding end. Alternatively, the correction factor may be provided together with a codebook index for the gain value to a decoding end, and the decoding end may use the correction factor to correct the gain value if appropriate.
Owner:NOKIA CORP

Method and device for removing hydrogen sulfide in gas phase through oxidation

The invention discloses a method and a device for removing hydrogen sulfide in a gas phase through oxidation. The device comprises a settling tank, an extracting pump, a filtering membrane, an ultra gravity rotary packed bed, a separator, a balanced tank and a regeneration ultra gravity machine, wherein the extracting pump and the filtering membrane are sequentially connected between the settling tank and the ultra gravity rotary packed bed; the balanced tank is connected between the settling tank and the separator; the ultra gravity rotary packed bed is communicated with the balanced tank; the settling tank and the separator are sequentially connected with the extracting pump and the filtering membrane; and the extraction pump and the filtering membrane are sequentially connected between the settling tank and the regeneration ultra gravity machine. A technology flow of pre-oxidation sweetening, ultra oxidation sweetening, sulfur settlement, and regeneration is adopted for the method. According to the method and the device, the ultra gravity machine is adopted to replace the traditional low-mass-transfer-efficiency reactor, and the ultra gravity rotary packed bed reactor is adopted both in hydrogen sulfide oxidation and catalyst regeneration, the process mass transfer efficiency is intensified greatly, and the regeneration time oxidation sulfur removing time and the desulfurizing agent regenerating time are shortened.
Owner:WUHAN GLT ENERGY & ENVIRONMENTAL TECH CO LTD

Height adjustable patient support platforms

The present invention relates to systems and methods for height adjusting patient support platforms, such as, for example, of a bed (e.g., the mattress support platform of a standard hospital bed with side rails), gurney, couch, chair, or recliner, to which a patient may be confined. The systems and methods are designed to lower the height of a patient support platform at least closer (and essentially all the way) to floor level in a relatively quick and controlled manner to reduce fall distances. Lowering the height of a patient support platform corresponding reduces the likelihood and significance of patient injuries resulting from falls when a patient attempts to exit the patient support platform.
Owner:BEE CAVE

Resilient PPP/ML-PPP services over multi-chassis APS protected routers

A system and method for resilient communication services under multi-chassis APS protected routers, including one or more of the following: an add-drop multiplexer; a working chassis; a plurality of working lines of communication between the add-drop multiplexer and the working chassis; a protection chassis; a plurality of protection lines of communication between the add-drop multiplexer and the protection chassis; and a multi-chassis APS control link between the working chassis and the protection chassis, wherein a plurality of active entities in the working chassis having state information send their state information to parallel inactive entities in the protection chassis by way of the multi-chassis APS, ones of said active entities send changed state information to parallel ones of said inactive entities through said multi-chassis APS control link upon a state change in said ones of said active entities, and ones of said inactive entities that were down request current state information from said active entities through said multi-chassis APS control link when said ones of said inactive entities that were down come back up after being down.
Owner:RPX CORP

Kit for distinguishing colorectal adenomas from colorectal cancer

The invention discloses a kit for distinguishing colorectal adenomas from colorectal cancer. The kit for distinguishing or assisting in distinguishing the colorectal adenomas from the colorectal cancer comprises a device for detecting phospholipids content and a contrast card established by the phospholipids content, wherein phospholipids are sphingosylphosphorylcholine (SPC), 16:0 sphingomyelin (SM), 18:0SM, 14:0 lysophosphatidylcholine (LPC), 16:0LPC, 18:0LPC, 20:0LPC and 22:0LPC. Saturated LPC, SPC and SM are taken as markers, and a molecular model for distinguishing the colorectal adenomas from the colorectal cancer is established, and has colorectal cancer distinguishing sensitivity of 90 percent and colorectal cancer distinguishing specificity of 93 percent.
Owner:BEIJING NORMAL UNIVERSITY

Image significance detection method based on fusion type geodesic curve and boundary comparison

ActiveCN106373126AConsistent highlighting of salient objectsSuppress some background areasImage enhancementImage analysisColor imagePattern recognition
The invention relates to an image significance detection method based on fusion type geodesic curve and boundary comparison and relates to common image analysis in an image data processing process. The method comprises steps that color images are inputted; superpixel segmentation including regular superpixel segmentation and irregular superpixel segmentation is carried out; a boundary comparison chart Sc is calculated; a geodesic curve chart Gc with color comparison and a geodesic curve chart Gn without color comparison are calculated, including pre-processing, calculating adjacent matrixes and calculating the geodesic curve chart Gc with color comparison and the geodesic curve chart Gn without color comparison; a significant chart is acquired through fusing three types of characteristic charts. The method is advantaged in that a problem that significant targets can not be consistently highlighted in the prior art is solved.
Owner:HEBEI UNIV OF TECH

Low-fat low-lipide-digestibility artificial butter and making method thereof

The invention discloses low-fat low-lipide-digestibility artificial butter. The low-fat low-lipide-digestibility artificial butter comprises the following components in parts by weight: 20-70 parts ofmicronized whey protein dispersed liquid, 10-30 parts of a xanthan gum system, and 10-60 parts of oil phase. The artificial butter not only has the characteristic of being low in fat (10-60%), but also can restrain contact of lipases and oil drops in digestive tracts of human bodies, and can prevent free fatty acids from being released, so that the lipide digestibility can be reduced. According to a method, whey protein and xanthan gum are used as raw materials, and damp and hot treatment, a micronizing technique, a compounding technique and an emulsifying homogenizing technique are adopted for preparing oil in water emulsion. The digestion suppression ratio of the artificial butter for lipide is as high as 60%. The low-fat low-lipide-digestibility artificial butter has smooth and soft mouth feel of butter, and white fine and smooth appearance, has similar processing characteristics of plasticity, stability and the like as cream sold in the market, and can be widely applied to processing of various foods through replacing cream.
Owner:TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Robust speed-limit traffic sign detection and recognition method

The present invention discloses a robust speed-limit traffic sign detection and recognition method. The method comprises the steps of firstly, establishing a multi-feature fusion type saliency model, and subjecting each layer of the multi-feature fusion type significance model to updating and iteration to obtain a level saliency map; secondly, solving a multilayer saliency map to obtain an optimal saliency map, obtaining an ROI from the optimal saliency map, loading the obtained ROI into a super-pixel-based pre-trained CNN model to classify the ROI, and obtaining a recognition result. According to the technical scheme of the invention, traffic signs on both sides can be better highlighted through the saliency model based on a-priori position and boundary features. Meanwhile, the structural information of an image is effectively utilized through the multi-layer fusion type saliency map. Moreover, multiple small-scale detail information in a circular sign is maintained, so that a target is more complete and uniform. Therefore, the recognition efficiency and the recognition accuracy are improved.
Owner:CHANGAN UNIV

Improvement method of grating anti-counterfeiting phase modulation based on color values

The invention discloses an improvement method of grating anti-counterfeiting phase modulation based on color values. The method comprises the following steps: step 1: selecting and decomposing a hostimage; step 2: determining a hidden area of the host image and anti-counterfeiting information: at least one color channel of the host image has a hidden area where the anti-counterfeiting informationcan be set, the hidden area has s*s pixel points, the color channel where the hidden area is located is recorded as a mother set, the color values of all pixel points of the hidden area on the motherset are the same and are recorded as alpha, and the rest color channels are 3 secondary versions; step 3, performing halftone processing on the host image; and step 4: hiding the anti-counterfeitinginformation: selecting the anti-counterfeiting information that needs to be hidden, establishing a lattice point selection area in the hidden area corresponding to the contour of the anti-counterfeiting information in image processing software, recording lattice points in the lattice point selection area as a set A, and performing phase modulation on the lattice points in the set A. By adoption ofthe improvement method disclosed by the invention, the modulable angle range of the lattice points is expanded.
Owner:HEBEI JIASHICHENG ENERGY TECH CO LTD

Dicyclic derivative of glucoside as well as preparation method and application of dicyclic derivative

The invention relates to a dicyclic derivative of glucoside as well as a preparation method and the application of the dicyclic derivative. Specifically, the invention relates to a compound as shown in Formula I, a stereisomer or pharmaceutically acceptable salt or ester of the compound, a pharmaceutical composition of the compound, and application of the compound in preparation of drugs for treating diabetes or relevant diseases.
Owner:CHINA RESOURCES DOUBLE CRANE PHARMA COMPANY

Polymer material thermal ageing life assessment method based on variable activation energy

The invention discloses a polymer material thermal aging life assessment method based on variable activation energy. Uniformly-spaced segment treatment is performed according to the variation trend ofa key performance index along with time during an accelerated thermal aging process of a material; then corresponding average activation energy is computed according to the aging time of the materialpassing through each interval at different temperatures, and the average activation energy of the different intervals is introduced into a thermal aging life assessment model; and finally, life assessment is performed in stages. Regression analysis and correlation test methods are applied to analyze a regression equation acquired during a computing process, to confirm the effectiveness of the acquired regression equation; the method not only completes the life assessment model, improves the assessment accuracy, and meanwhile ensures the effectiveness of the test data and the analysis method from the perspective of a mathematical statistical method.
Owner:SUZHOU UNIV OF SCI & TECH

Pharmaceutical composition for preventing and treating chicken colibacillosis and preparation method of pharmaceutical composition

The invention discloses a pharmaceutical composition for preventing and treating chicken colibacillosis and a preparation method of the pharmaceutical composition. The composition comprises the following components in parts by weight: 25-30 parts of Chinese pulsatilla roots, 25-30 parts of coptis chinensis, 25-30 parts of scutellaria baicalensis, 15-20 parts of cortex fraxini, 15-20 parts of common andrographis herbs, 15-20 parts of radix isatidis, 10-15 parts of radix curcumae, 10-15 parts of agastache rugosus and 25-30 parts of liquorice. The composition can be used for effectively inhibiting chicken colibacillosis, increasing the protection rate of broiler chicken not suffering from diseases by 5% and reducing the death rate of laying hens suffering from diseases by 23.4%.
Owner:HEBEI UNIV OF ENG

Technetium-99m labeled FAPI derivative modified by D-proline glycine containing polypeptide as well as preparation method and application of technetium-99m labeled FAPI derivative modified by D-proline glycine containing polypeptide

The invention discloses a technetium-99m labeled FAPI derivative containing D-proline glycine polypeptide modification and a preparation method and application of the technetium-99m labeled FAPI derivative containing D-proline glycine polypeptide modification, wherein the structural general formula of the technetium-99m labeled FAPI derivative is 99mTc (HYNIC-PGn-FAPI) (Tricine / TPPTS). The < 99m > Tc (HYNIC-PGn-FAP) (trickine / TPPTS) complex is prepared by the following two steps: synthesis of a ligand HYNIC-PGn-FAPI and preparation of the < 99m > Tc (HYNIC-PGn-FAP) (trickine / TPPTS), and the < 99m > Tc (HYNIC-PGn-FAP) (trickine / TPPTS) complex is obtained. The complex is simple and convenient to prepare, high in radiochemical purity and good in stability, has very high uptake and target-to-non-target ratio at the tumor site of a U87MG tumor-bearing mouse, has specific binding with FAP in tumors, and is a novel tumor radiopharmaceutical with clinical application value.
Owner:BEIJING NORMAL UNIVERSITY

Method for optimizing identification grating extraction performance in information extraction phase

The invention discloses a grating anti-fake method for improving identification grating extraction performance. The method comprises the following steps of S1, selecting a host image, specifically, decomposing the host image, thereby enabling the host image to be composed of four color channels of a channel C, a channel M, a channel Y and a channel K; setting a hiding area of anti-fake informationon at least one color channel of the host image, and recording the color channel on which the hiding area is located as a master mask, wherein color values of all pixels in the hiding area on the master mask are alpha, and the alpha is 0.1-0.5; recording the rest color channels as three secondary masks, and reselecting the host image when the hiding area of which alpha is 0.1-0.5 cannot be selected; S2, halftoning the host image; and S3 hiding the anti-fake information. According to the method, the stealthiness and extraction effect of the anti-fake information are improved.
Owner:HEFEI KANGZHIHENG MACHINERY TECH CO LTD

A method of cloth defect detection based on visual saliency

The invention discloses a cloth defect detection method based on visual salience, which comprises the following steps: (1) collecting images; (2) processing brightness features; (3) processing direction features; (4) multi-channel superposition and normalizing processing; (5) Grayscale image processing; (6) Binarization processing; (7) Defect area judgment. Compared with the traditional cloth defect detection method, the present invention reduces the complexity of calculation, improves the recognition rate, and can accurately locate , and at the same time, it avoids false detections easily caused by the case where the gray value of the salient image of the detected cloth intact image is higher than the gray value of the intact part of the defect image, effectively reducing the interference of the background during the detection process, and reducing It prevents the misjudgment of the target area obtained by the adaptive threshold segmentation of the image of the intact cloth as the defective area.
Owner:SUZHOU UNIV

Radar emitter signal sorting multi-objective optimization method based on membrane system

The invention discloses a radar emitter signal sorting multi-objective optimization method based on a membrane system. The traditional clustering is firstly converted to a multi-objective optimization problem; then, with a membrane computation optimization theory as a main line, intelligent information processing techniques such as a genetic algorithm and computation intelligence are integrated to the framework of the membrane structure for crossing, the self improvement ability of the algorithm is investigated, comparison with the computation efficiency and the integration ability with the current typical intelligent algorithm is carried out, the convergence accuracy and the effectiveness of the membrane system are verified, multiple Pareto frontier solutions with different clusters are expected to be acquired, the diversity and the difference of sorting results are kept, and accuracy of later sorting is facilitated. In combination of the nature of emitter signal sorting, cluster effectiveness indexes, feature evaluation indexes and other evaluation criteria related to sorting form a corresponding problem model and a multi-objective function. In view of intercepted unknown radar signals, the nature of unsupervised classification can meet radar emitter signal sorting requirements.
Owner:YUNNAN UNIVERSITY OF FINANCE AND ECONOMICS

Technetium-99m-labeled FAPI derivative containing D-proline modification as well as preparation method and application of technetium-99m-labeled FAPI derivative

The invention discloses a technetium-99m labeled FAPI derivative containing D-proline modification and a preparation method and application of the technetium-99m labeled FAPI derivative containing D-proline modification, wherein the structural general formula of the technetium-99m labeled FAPI derivative is 99mTc (HYNIC-DP-FAPI) (Tricine / TPPTS). The < 99m > Tc (HYNIC-DP-FAPI) (trickine / TPPTS) complex is prepared by the following two steps: synthesis of a ligand HYNIC-DP-FAPI and preparation of the < 99m > Tc (HYNIC-DP-FAPI) (trickine / TPPTS), and the < 99m > Tc (HYNIC-DP-FAPI) (trickine / TPPTS) complex is obtained. The complex is simple and convenient to prepare, high in radiochemical purity and good in stability, has very high uptake and target-to-non-target ratio at the tumor site of a U87MG tumor-bearing mouse, has specific binding with FAP in tumors, and is a novel tumor radiopharmaceutical with clinical application value.
Owner:BEIJING NORMAL UNIVERSITY

Host image processing method for setting anti-counterfeiting information in color channels

The invention discloses a host image processing method for setting anti-counterfeiting information in color channels. The method comprises the following steps of 1 host image selecting, wherein a hostimage is decomposed to be composed of four color channels including the C channel, the M channel, the Y channel and the K channel; 2 host image halftoning processing, wherein screening parameters areset for the four color channels to achieve screening processing respectively, wherein the screening parameters comprise the screening angle, the screening angle of the master is marked as theta, anda master halftone picture and three copy halftone pictures which are formed by dots are obtained; and 3 anti-counterfeiting information hiding. According to the method, a threshold of generating dot lap-joint is determined, and the distance and angle that the dots can be modulated are optimized.
Owner:HEFEI XINYADA INTELLIGENT TECH CO LTD

Infrared target detection method in offshore backlight environment

ActiveCN109993744AAddressing the lack of reliable detection methodsLow operating efficiencyImage enhancementImage analysisPattern recognitionRough surface
The invention provides an infrared target detection method in an offshore backlight environment. The method comprises the steps of judging the smoothness degree of the sea surface through a standard deviation; if judging that the sea surface is a rough sea surface, carrying out Gaussian difference preprocessing, Gaussian filtering and downsampling operation with the step length being 2 and constructing a gray level Gaussian pyramid graph under multiple scales; carrying out high-scale'central-peripheral difference and applying iterative nonlinear normalization operator to obtain feature map ingray form;;if judging that the sea surface is smooth, carrying out Gabor filtering and downsampling operation with the step length being 2 and constructing directional Gaussian pyramid graphs under multiple scales; carrying out low-scale'central-peripheral 'difference and applying an iterative nonlinear normalization operator to obtain characteristic pattern in a direction form; and finally, performing an accumulated scale linear superposition operation on the feature map, and obtaining a saliency map by applying an iterative nonlinear normalization operator; carrying out self-adaptive binarization segmentation operation on the saliency map to obtain a detection result.
Owner:DALIAN MARITIME UNIVERSITY

Vector capable of promoting self renewal and proliferation of spermatogonial stem cells of dairy goat and application of vector

The invention discloses a vector capable of promoting the self renewal and proliferation of spermatogonial stem cells of a dairy goat and application of the vector. The vector is an eukaryotic expression vector containing a dairy goat gSirt1 gene, wherein the nucleotide sequence of the dairy goat gSirt1 gene is shown as SEQ.ID.NO.1. According to the vector and the application of the vector, over-expression or super expression in the spermatogonial stem cells is realized by the constructed eukaryotic expression vector, and RT-PCR (Reverse Transcription-Polymerase Chain Reaction), Western blot and cell cycle examination show that the gSirt1 gene is helpful for the self renewal, stemness (pluripotency) maintenance and cell proliferation of the spermatogonial stem cells.
Owner:NORTHWEST A & F UNIV

Host image processing method for optimizing anti-fake information concealment and abstraction

The invention discloses a host image processing method for optimizing anti-fake information concealment and abstraction. The host image processing method comprises the following steps of (1), selection of a host image; (2), halftone processing of the host image, specifically, four color channels are provided with screening parameters for screening processing correspondingly, and a master halftonepicture and three subsidiary halftone pictures composed of screentones are obtained; (3), concealment of anti-fake information, specifically, after phase modulation is completed, the master halftone picture carrying the anti-fake information is obtained, the master halftone picture and the three subsidiary halftone pictures are subjected to image combination, a host image halftone picture carryingthe anti-fake information is obtained, and concealment of the anti-fake information is completed. By means of the host image processing method, the modulable angle range of the screentones is broadened, the modulable distance of the screentones is optimized, and the concealment and the abstraction effect of the anti-fake information are improved.
Owner:HEFEI KANGZHIHENG MACHINERY TECH CO LTD

Raster anti-counterfeiting image setting method improving anti-counterfeiting information concealment

The invention discloses a host image processing method optimizing anti-counterfeiting information concealment and extractability. The method comprises the following steps of first, selecting a host image; second, performing halftone processing on the host image: setting screening parameters for four color channels separately so as to perform screening processing to obtain a master halftone map consisting networks and three secondary halftone maps; and third, hiding anti-counterfeiting information: modulating a phase and then obtaining the master halftone map carrying anti-counterfeiting information, synthesizing the master halftone map with the three secondary halftone maps so as to obtain a host image halftone map carrying anti-counterfeiting information, and completing hiding of the anti-counterfeiting information. The method enlarges the network modulation angle, optimizes network modulation distance, and improves anti-counterfeiting information concealment and extractability.
Owner:HEBEI JIASHICHENG ENERGY TECH CO LTD

Preparation method of plastid transgenic plant for preventing and treating Myzus persicae (Sulzer), and application of plastid transgenic plant in prevention and treatment of Myzus persicae (Sulzer)

ActiveCN113373146AAverage weight lossSignificant decrease in average body weightVector-based foreign material introductionAngiosperms/flowering plantsBiotechnologyNicotiana tabacum
The invention belongs to the technical field of biology, and particularly relates to a preparation method of a plastid transgenic plant for preventing and treating Myzus persicae (Sulzer), and application of the plastid transgenic plant in prevention and treatment of the Myzus persicae (Sulzer). The invention confirms that the Myzus persicae (Sulzer) eats plant plastids, after a Myzus persicae (Sulzer) RNAi lethal gene MpDhc64C is obtained through screening, a tobacco plastid transformation vector for expressing dsMpDhc64C is constructed, and plastid transgenic tobacco is obtained through transformation. After the Myzus persicae (Sulzer) eats the transgenic plant, the expression level of a target gene is obviously reduced, the survival rate and the number of later generations are obviously reduced, and the weight of the survived Myzus persicae (Sulzer) is obviously reduced so as to indicate that dsRNA expressed by plant plastid successfully enters the Myzus persicae (Sulzer) body and triggers the RNAi effect, so that the target gene of the insect is down-regulated, and various adverse symptoms aiming at the Myzus persicae (Sulzer) are triggered. The Myzus persicae (Sulzer) resistance of the plant is remarkably improved, and a new technical scheme is provided for Myzus persicae (Sulzer) prevention and treatment.
Owner:HUBEI UNIV

Kit for distinguishing colorectal adenomas from colorectal cancer

The invention discloses a kit for distinguishing colorectal adenomas from colorectal cancer. The kit for distinguishing or assisting in distinguishing the colorectal adenomas from the colorectal cancer comprises a device for detecting phospholipids content and a contrast card established by the phospholipids content, wherein phospholipids are sphingosylphosphorylcholine (SPC), 16:0 sphingomyelin (SM), 18:0SM, 14:0 lysophosphatidylcholine (LPC), 16:0LPC, 18:0LPC, 20:0LPC and 22:0LPC. Saturated LPC, SPC and SM are taken as markers, and a molecular model for distinguishing the colorectal adenomas from the colorectal cancer is established, and has colorectal cancer distinguishing sensitivity of 90 percent and colorectal cancer distinguishing specificity of 93 percent.
Owner:BEIJING NORMAL UNIVERSITY

A Multi-objective Optimization Method for Radar Radiator Signal Sorting Based on Membrane System

The invention discloses a multi-objective optimization method for radar radiation source signal sorting based on a membrane system. First, the traditional clustering is transformed into a multi-objective optimization problem, and then the membrane calculation optimization theory is used as the main line, and the genetic algorithm is integrated into the membrane structure framework. Algorithms, computational intelligence and other intelligent information processing technologies are intersected, and the self-improvement ability of the algorithm and the calculation efficiency and fusion ability of the current typical intelligent algorithms are compared to verify the convergence accuracy and effectiveness of the membrane system, in order to obtain multiple data sets with different clusters. The Pareto frontier solution maintains the diversity and difference of sorting results, which is conducive to the accuracy of later sorting. Combined with the nature of radiation source signal sorting, the clustering validity index, feature evaluation index and other evaluation criteria related to sorting are constructed into corresponding problem models and multi-objective functions. For the intercepted unknown radar signals, the essence of unsupervised classification is in line with the classification requirements of radar emitter signals.
Owner:YUNNAN UNIVERSITY OF FINANCE AND ECONOMICS

Method for prefabricating anti-counterfeiting information in host image

The invention discloses a method for prefabricating anti-counterfeiting information in a host image. The method comprises the following steps: step 1: selecting and decomposing the host image: settingan image mode of the host image as a CMYK mode, and decomposing the host image, so that the host image is composed of 4 color channels, namely, a C channel, an M channel, a Y channel and a K channel;step 2: determining a hidden area of the host image and the anti-counterfeiting information; step 3: Performing halftone processing on the host image; and step 4: hiding the anti-counterfeiting information. By adoption of the method disclosed by the invention, the direction and distance of lattice point movement in phase modulation are optimized.
Owner:HEFEI SIBOT SOFTWARE DEV CO LTD

Bicyclic derivative of heterocyclic glucoside as well as preparation method and application of bicyclic derivative

The invention relates to a bicyclic derivative of heterocyclic glucoside as well as a preparation method and application of the bicyclic derivative, in particular to a compound shown in a formula I, a stereoisomer or pharmaceutically acceptable salt or ester of the compound, a pharmaceutical composition of the compound and application of the compound to preparation of drugs for treating diabetes or related diseases of the diabetes.
Owner:CHINA RESOURCES DOUBLE CRANE PHARMA COMPANY
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