Abstract: Described herein are method, system, and apparatus for correlating medical images with a medical report. An apparatus may obtain a plurality of medical images of a patient and a medical report for the patient, wherein the plurality of medical images may be associated with respective sequence labels and respective view labels, and wherein the medical report may include multiple diagnoses. The apparatus may determine and fuse respective image-type embeddings and image-content embeddings for the plurality of medical images into a combined image feature representation. The apparatus may further encode the features of the medical report into a text feature representation and calculate a similarity score based on the image feature representation and the text feature representation to indicate a correlation between the medical images and the medical report.

Abstract: In a method for measuring brain free water content, in response to an RF excitation field generated on the basis of a magnetic resonance fingerprinting sequence and applied to the brain, an equilibrium magnetization mixed term (M0) signal is acquired from radiation emitted by each excited voxel of the brain, to obtain an M0 value of each voxel of the brain; a receive coil sensitivity (RP) value of each voxel of the brain is acquired; the M0 value of each voxel of the brain is divided by the RP value of the corresponding voxel to obtain a proton density (PD) value of each voxel of the brain; a PD value of cerebrospinal fluid is taken to be a reference PD value; and the PD value of each voxel of the brain is divided by the reference PD value to obtain the free water content of each voxel of the brain. The method advantageously increases the speed and accuracy of measurement of brain free water content.

Abstract: Provided in the present disclosure are a positive electrode material used for a lithium ion battery. The positive electrode material comprises substrate particles, a first coating layer that covers the substrate particles, and a second coating layer that covers the first coating layer; the substrate particles contain LiNixMny CozM1-x-y-zO2; the first cladding layer contains lithium cobalt oxide; and the second coating layer contains an oxide of a transition metal.

Abstract: A method and device for inverting ocean-atmosphere optical parameters and storage medium. The method includes: obtaining a vector apparent reflectance ?l, ?Q, ?U of water-leaving radiance at top of atmosphere and observation geometry of a multi-angle polarized satellite, and inputting the vector apparent reflectance ?l, ?Q, ?U and the observation geometry into a trained ocean-atmosphere optical parameter model, to output a group of ocean-atmosphere optical parameters, the output ocean-atmosphere optical parameters comprise: PBOAw, FAOD/CAOD, FRm/CRm, W, CHL and SPM, the ocean-atmosphere optical parameter model is an XGBoost machine training model. In this way, the ocean-atmosphere optical parameters can be quickly and stably inverted.

Abstract: A method and device for inverting ocean-atmosphere optical parameters and storage medium. The method includes: obtaining a vector apparent reflectance ?l, ?Q, ?U of water-leaving radiance at top of atmosphere and observation geometry of a multi-angle polarized satellite, and inputting the vector apparent reflectance ?l, ?Q, ?U and the observation geometry into a trained ocean-atmosphere optical parameter model, to output a group of ocean-atmosphere optical parameters, the output ocean-atmosphere optical parameters comprise: PBOAw, FAOD/CAOD, FRm/CRm, W, CHL and SPM, the ocean-atmosphere optical parameter model is an XGBoost machine training model. In this way, the ocean-atmosphere optical parameters can be quickly and stably inverted.

Abstract: Provided are an electrode assembly and a battery. The electrode assembly includes a positive electrode piece, a negative electrode piece and a first protective layer arranged on the surfaces of the positive electrode piece and the negative electrode piece; and in a projection plane based on a length direction and a width direction of the electrode assembly, an orthographic projection of the first protective layer in the projection plane covers an orthographic projection of a first region of a positive electrode tab in the projection plane. The electrode assembly can take into account the energy of battery on the basis of preventing burrs of tab from piercing a separator.

Abstract: A method for discriminating vertical distribution models of organic carbons is provided, the method includes: obtaining a concentration of organic carbons in a surface layer of the ocean water area, depths of water of the ocean water area and depths of mixed layers of the ocean water area; determining different vertical distribution models of organic carbons in the ocean water area according to the concentration of the organic carbons in the surface layer and the depths of water of the ocean water area; calculating ratios of the depths of water of the ocean water area to the depths of the mixed layers of the ocean water area; and discriminating the vertical distribution models according to the ratios. According to this method, the accuracy of estimation of the stock of organic carbons in the ocean water area can be improved greatly.

Abstract: Embodiments of the present disclosure relate to the technical field of batteries, and in particular to a battery cell and a battery. The battery cell is formed by winding a first electrode sheet and a second electrode sheet; the first electrode sheet and the second electrode sheet are separated by a separator; a head portion of the second electrode sheet is provided with an empty foil area which is not coated with an active substance; the empty foil area is provided with a first protection adhesive paper and second protection adhesive paper; the first protection adhesive paper and the second protection adhesive paper are located on two sides of an edge of a head portion of the first electrode sheet in a thickness direction of the battery cell.

Abstract: A method and a device for determining an extraction model of a green tide coverage ratio based on mixed pixels. The method includes acquiring sample truth values respectively corresponding to a plurality of target regions water body and green tide; acquiring a plurality of first remote sensing data of a first satellite sensor, the plurality of remote sensing data are in one-to-one correspondence with the plurality of target regions; determining reflection index sets respectively corresponding to the plurality of target regions according to the plurality of remote sensing data; and determining the extraction model of the green tide coverage ratio corresponding to the first satellite sensor according to the sample truth value corresponding to each of the plurality of target regions and the reflection index set corresponding to each of the plurality of target regions.

Abstract: A method for implementing transmission performance detection includes: after successively receiving data packets whose sequence numbers are N1 and N2, determining, by a detection apparatus, that N2 is greater than N1 and that N1 and N2 are inconsecutive; after receiving the data packet whose sequence number is N2, receiving a data packet whose sequence number is M1; and when determining N1<M1<N2 and T2?T1>=RTT, determining that the data packet whose sequence number is M1 is a retransmitted packet corresponding to an upstream packet loss, where T1 is a time for receiving the data packet whose sequence number is N2, T2 is a time for receiving the data packet whose sequence number is M1.

Abstract: The present invention provides a single-crystal high-nickel positive electrode material and a preparation method therefor and an application thereof. The preparation method comprises the following steps: (1) mixing a precursor, a lithium source, and a nano oxide, and performing primary sintering treatment in an oxygen-containing atmosphere to obtain a primary sintered material; and (2) mixing the primary sintered material obtained in step (1) with a titanium source and a cobalt source, and performing secondary sintering treatment in an oxygen-containing atmosphere to obtain the single-crystal high-nickel positive electrode material. The present invention uses a Ti/Co co-coating method, the residual alkali amount of the prepared single-crystal high-nickel positive electrode material can be greatly reduced, and the capacity and the rate capability can also be kept at a high level, so that the technological process is reduced, and the cost is reduced.

Abstract: A composite material and a preparation method therefor and a lithium-ion battery positive electrode material. The preparation method for the composite material comprises the following steps: performing first calcination treatment on a mixture of a manganese source, a nickel source, a lithium source and a cobalt source to obtain cobalt-doped lithium nickel manganese oxide; and performing second calcination treatment on a mixture of the cobalt-doped lithium nickel manganese oxide and silicon dioxide.

Abstract: A fault detection method includes: obtaining a video quality parameter of a monitored video stream, where the video quality parameter is determined according to a packet loss recovery method of the monitored video stream, the video quality parameter includes an effective packet loss factor, and the effective packet loss factor is used to indicate effectiveness of network packet loss recovery performed by using the packet loss recovery method of the monitored video stream; and performing fault detection based on the video quality parameter of the monitored video stream.

Abstract: Provided is a method for preparing a layered positive electrode material, comprising the following steps: (1) mixing layered nickel cobalt manganese hydroxide with a lithium source, carrying out primary sintering in an oxygen atmosphere, pulverizing and sieving to obtain a primary sintering product; and (2) carrying out secondary sintering on the primary sintering product in a sulfur dioxide atmosphere to obtain a layered positive electrode material, of which the chemical formula is NiaCobMnc(OH)2, wherein 0.3?a?0.95, 0.03?b?0.12, 0.01?c?0.10, and a+b+c=1. Also provided are a layered positive electrode material obtained by the preparation method and a lithium-ion battery comprising the layered positive electrode material.

Abstract: Disclosed are a cathode electrode material and a preparation method and application thereof. A general formula thereof is LiaNi1-x-y-zCoxMnyAlzMbO2, herein 1.04?a?1.08, 0.04?x?0.08, 0.025?y?0.06, 0.03?z?0.09, 0.015?b?0.06, and M is B and at least one selected from Zr, Al, Ti, Mg, Na, Ca, Nb, Ba, Si, P, W, and Sr. Compared with an existing nickel-cobalt-manganese-aluminum cathode electrode material, the cathode electrode material is doped with an M ion. Through the doping of the M ion, the content of a divalent nickel ion may be reduced, thereby the amount of the nickel ions that transit from a crystal plane (003) to a crystal plane (104) is reduced, and the degree of lithium-nickel mixing is reduced, so that the crystal structure of the cathode electrode material is stabilized, thereby the cycle retention rate and thermal stability of the material are improved, as to prolong service life of the material and improve the safety thereof.

Abstract: The present disclosure provides a boron oxide-coated quaternary cathode electrode material and a preparation method and application thereof. The boron oxide-coated quaternary cathode electrode material includes a quaternary cathode electrode material matrix and a boron oxide coating layer, the boron oxide coating layer is arranged on the surface of the quaternary cathode electrode material matrix, and the quaternary cathode electrode material matrix, is LiaNixCoyMnzAl(1-x-y-z)O2, herein a=1-1.06, x=0.8-0.9, y=0.01-0.1, and z=0.01-0.1.

Abstract: The present disclosure provides a cathode material, a method for preparing the cathode material and a lithium ion battery. The method comprises: performing a first sintering treatment on a lithium source material and a cathode precursor material to obtain a first sintered product; and coating a surface of the first sintered product with a coating agent and then performing a second sintering treatment to obtain the cathode material, wherein the coating agent is a nickel source material and/or a manganese source material. The method can reduce side reactions in an electrolyte and particles, improve the cyclic retention ratio and prolong the service of the battery without losing the circulation capacity while simplifying a synthetic process, reducing the energy consumption, improving the yield, canceling a water washing process and reducing residual lithium.

Abstract: In a method for measuring brain free water content, in response to an RF excitation field generated on the basis of a magnetic resonance fingerprinting sequence and applied to the brain, an equilibrium magnetization mixed term (M0) signal is acquired from radiation emitted by each excited voxel of the brain, to obtain an M0 value of each voxel of the brain; a receive coil sensitivity (RP) value of each voxel of the brain is acquired; the M0 value of each voxel of the brain is divided by the RP value of the corresponding voxel to obtain a proton density (PD) value of each voxel of the brain; a PD value of cerebrospinal fluid is taken to be a reference PD value; and the PD value of each voxel of the brain is divided by the reference PD value to obtain the free water content of each voxel of the brain. The method advantageously increases the speed and accuracy of measurement of brain free water content.

Abstract: Provided in the present disclosure are a positive electrode material used for a lithium ion battery. The positive electrode material comprises substrate particles, a first cladding layer that covers the substrate particles, and a second cladding layer that covers the first cladding layer; the substrate particles contain LiNixMny CozM1-x-y-zO2; the first cladding layer contains lithium cobalt oxide; and the second cladding layer contains an oxide of a transition metal.

Abstract: The present invention discloses a quaternary cathode material, an cathode and a battery. Particularly, the present invention provides the quaternary cathode material with a chemical structural formula: LixNia?CobMnc?AldMyO2, wherein 1x1.05,0<y0.025.0.3a?0.95,0.03b01.0.01c?0.05,0.01d0.005 and a?+b+c?+d=1; M is a dopant selecting from at least one of Zr, Al, B, Ti, Mg, Nb, Ba, Si, P, W, Sr and F. The quaternary cathode material has an ?-NaFeO2 type crystal structure. The space group of an X-ray diffraction pattern of the quaternary cathode material is R-3m, and the relationship between a cell parameter c of an axis c and a cell parameter a of an axis a is as follows: c/a>4.943.