Abstract: A method for prognostic survival stage prediction based on machine learning includes acquiring patients' original information data within a previous preset time period and integrating the patients' original information data so as to obtain a first data set without recurrence time and a second data set with recurrence time; performing analysis based on preoperative information, postoperative information and survival status of each corresponding patient, so as to obtain a correlation degree among the preoperative information, the postoperative information and the survival status; and training in the first data set, so as to obtain a postoperative survival probability prediction model. The method includes training in the second data set, so as to obtain a survival time period prediction model if judging that a survival probability of a target patient is less than or equal to a preset value according to the postoperative survival probability prediction model.

Abstract: Provided are a functional coating material for a lithium ion battery separator and a preparation method therefor. The functional coating material for a lithium ion battery separator comprises 1-15% mass fraction of inorganic nanoparticles, 8-30% mass fraction of nanofibers and 1-5% mass fraction of an adhesive, and the remainder being a solvent. The preparation method therefor comprises the following steps: (1) preparing the nanofibers as a spinning precursor liquid; (2) preparing a dispersion liquid with the inorganic nanoparticles and the spinning precursor liquid; and (3) adding the adhesive to the dispersion liquid, and mixing same until uniform to obtain the functional coating material for a lithium ion battery separator.

Abstract: A composite diaphragm, comprising first particles and second particles, and a binder less than 5 wt %. The first particles and the second particles have different particle sizes of particle compositions, the first particles have a radius of r, and the second particles have a radius of r?, wherein r and r? meet the following relationship: (2?{square root over (3)}/3?1)<(r?/r)<(?{square root over (6)}/2?1); the first particles are prepared from at least one or more of egg shells, duck egg shells, goose egg shells, and other bird or amphibian egg shells; the second particles are prepared from shells and abalone shells; a first particle layer, a second particle layer, and the binder are adopted to form a film, an integrated lithium ion battery composite diaphragm material is formed, an inorganic material is not easy to fall off, and a particle material plays a full role.

Abstract: A lithium ion battery diaphragm, comprising a substrate and a modification layer, wherein the modification layer is an inorganic coating; the inorganic coating is composed of a first particle layer and a second particle layer; the first particle layer has a first particle size r, and the second particle layer has a second particle size r?, wherein the particle sizes r and r? satisfy the following relationship: (2?{square root over (3)}/3?1)<(r?/r)<(?{square root over (6)}/2?1); first particles are at least one or more of boehmite, aluminum oxide, titanium oxide, calcium oxide, zinc oxide, copper oxide, and manganese oxide; and second particles are natural organic particles, and are prepared from natural organic shells, wherein the natural organic shells are selected from eggshells and seashells. The first particle layer and the second particle layer are combined to form an integrated lithium battery diaphragm material.

Abstract: The present invention relates to composite ceramic membranes for use in chemical processes such as the separation of molecules, sometimes referred to as molecular sieving, preferably in combination with chemical conversion of molecules selected from a composition of different molecules, e.g. the selective partial or full oxidation. The composite membrane of the invention offers a combination of molecular sieving and oxygen transport that makes the composite membrane suitable for the selective oxidation of hydrocarbons from a feed comprising a mixture hydrocarbons. The composite membrane of the invention comprises a first layer containing an oxygen transporting material (OTM), e.g. perovskite, and, in association with the first layer, a second layer, containing a molecular sieve layer, e.g. a zeolite.