Abstract: The present disclosure relates to the field of ultrasonic detection, in particular to a craniocerebral ultrasonic standard plane imaging and automatic detection and display method for abnormal regions. The following technical solution is adopted: contour detection is performed on the scanned ultrasound images the skull to construct a skull surface model, and the standard planes in ultrasound images are identified and extracted according to the skull surface model. The symmetry of the standard planes in ultrasound images is used to compare the similarity, so as to obtain the abnormal regions for segmentation and display. The advantages of the present disclosure are as follows: the skull surface model is constructed by detecting the cranial edge, and the coordinate system is established based on this model, thereby the standard planes in ultrasound images can be quickly identified from the scanned ultrasound images.

Abstract: Disclosed is a method of preparing a tin oxide nanoribbon acetone gas sensor. The detailed steps are: placing tin oxide powder and silicon sheet into a horizontal tube furnace; pretreating gas inside the tube furnace; firing ultra-thin tin oxide nanoribbons at high temperature; dispersing ultra-thin tin oxide nanoribbons; preparing ultra-thin tin oxide nanoribbon acetone gas sensors. The tin oxide nanoribbons obtained by this preparation method are extremely thin, and the nanoribbons are flexible. The tin oxide nanoribbons deposited on the silicon sheet are easy to disperse, which brings greater convenience to the practical application of tin oxide nanoribbons. The tin oxide nanoribbons obtained according to this method of preparing ultra-thin tin oxide nanoribbons are sensitive to acetone gas, and therefore can be applied into an acetone gas sensor.

Abstract: Provided herein is a method for preparing indium oxide nanorods, comprising the following steps: S1: placing indium oxide powder at a central temperature control area of a tube furnace, and then placing a cleaned silicon wafer downstream from the indium oxide powder; S2: evacuating inside the tube furnace, and then continuing to introduce argon gas; and S3: adjusting a program to heat up the central temperature control area of the tube furnace and maintaining it at a temperature, and then naturally cooling to obtain a indium oxide nanorods grown on the surface of the silicon wafer.

Abstract: An ultrasound automated detection and display method of cranial abnormal regions includes: firstly, a skull surface model is constructed; then contour detection is carried out based on a two-dimensional ultrasonic image to obtain a skull contour curve; fitting is carried out on the contour curve and the skull surface model to determine whether the two-dimensional ultrasonic image has symmetry characteristics or not; finally, similarity comparison calculation is carried out on two mutually symmetrical regions by utilizing the symmetry characteristics of the two-dimensional image, so that whether an abnormal region exists and the location of the abnormal region is determined. The method has the advantages that a skull surface model is constructed before detecting a cranial contour curve on a two-dimensional ultrasonic image.

Abstract: Provided herein is a method for preparing a flat-surfaced MAPbBr3 perovskite block and a use thereof. The preparation steps include: preparing a mixed solution formed by adding MABr and PbBr2 to a DMF solution; preparing a nickel foam mesh with the precursor solution; removing excess reaction liquid from the nickel foam mesh; and drying the nickel foam mesh to obtain the flat-surfaced MAPbBr3 perovskite block. It employs a solution-based method to fabricate MAPbBr3 perovskite on a nickel foam mesh, resulting in flat-surfaced MAPbBr3 perovskite blocks. The prepared perovskite can be utilized in the fields of solar cells, LEDs, and photoelectric hydrolysis. The method is simple and easy to operate, by using a solution-based method on a nickel foam mesh, flat-surfaced perovskite blocks can be formed, and the flat surface is beneficial for light absorption and energy conversion, thus enhancing the performance of the sample.

Abstract: The present disclosure discloses a method for preparing a carbon nanodot-modified nickel phosphide nanosheet and a use thereof as auxiliary materials in water electrolysis. The preparation steps include: preparing water solution containing carbon nanodots; attaching the carbon nanodots to the surface of a hydrogen-producing electrode in water electrolysis; and annealing the hydrogen-producing electrode with carbon nanodots. The carbon nanodots obtained by this preparation method have extremely small sizes and relatively uniform diameters, facilitating the attachment with other materials, and the integration of these carbon nanodots with the hydrogen-producing electrode in water electrolysis significantly enhances the hydrogen production efficiency, substantially reducing the cost required for hydrogen production through water electrolysis.

Abstract: The present disclosure relates to the field of ultrasonic detection, in particular to a craniocerebral ultrasonic standard plane imaging and automatic detection and display method for abnormal regions. The following technical solution is adopted: contour detection is performed on the scanned ultrasound images the skull to construct a skull surface model, and the standard planes in ultrasound images are identified and extracted according to the skull surface model. The symmetry of the standard planes in ultrasound images is used to compare the similarity, so as to obtain the abnormal regions for segmentation and display. The advantages of the present disclosure are as follows: the skull surface model is constructed by detecting the cranial edge, and the coordinate system is established based on this model, thereby the standard planes in ultrasound images can be quickly identified from the scanned ultrasound images.

Abstract: A joined material and a method of manufacturing the joined material are provided which enable a metal layer and a carbon material layer to be easily joined to each other while making the thickness of the metal layer larger and which can inhibit failure. A joined material includes a CFC layer (3) and a tungsten layer (4) that are joined to each other. A sintered tungsten carbide layer (5), a mixed layer (6) of SiC and WC, and SiC and WC (7) that have been sintered while intruding into the CFC layer (3), are formed between the CFC layer (3) and the tungsten layer (4), and these layers (3, 4, 5, 6, and 7) are joined to each other by sintering.

Abstract: Achieved is a ceramic carbon composite material and a ceramic-coated ceramic carbon composite material which are lighter than ceramics and excellent in at least one of properties including oxidation resistance, resistance to dust generation, heat conductivity, electrical conductivity, strength, and denseness. The ceramic carbon composite material is a ceramic carbon composite material in which an interfacial layer of a ceramic is formed between carbon particles of or containing graphite. The ceramic carbon composite material can be produced by forming a green body from ceramic-coated powder in which the surfaces of carbon particles of or containing graphite are coated with individual ceramic layers and sintering the green body.

Abstract: A joined material and a method of manufacturing the joined material are provided which enable a metal layer and a carbon material layer to be easily joined to each other while making the thickness of the metal layer larger and which can inhibit failure. A joined material includes a CFC layer (3) and a tungsten layer (4) that are joined to each other. A sintered tungsten carbide layer (5), a mixed layer (6) of SiC and WC, and SiC and WC (7) that have been sintered while intruding into the CFC layer (3), are formed between the CFC layer (3) and the tungsten layer (4), and these layers (3, 4, 5, 6, and 7) are joined to each other by sintering.

Abstract: In a method for controlling characteristics of a ceramic carbon composite, an interfacial layer of a ceramic is formed throughout a carbonaceous material and the interfacial layer of the ceramic has a continuous three-dimensional network throughout the carbonaceous material; and characteristics of a ceramic carbon composite are controlled. In a method, an interfacial layer (3) of a ceramic is formed throughout a carbonaceous material (2) and the interfacial layer (3) of the ceramic has a continuous three-dimensional network throughout the carbonaceous material (2), the characteristics of the ceramic carbon composite (1) is controlled by specifying and selecting at least one of a shape, a hardness, and a degree of graphitization of the carbonaceous material (2). Thus, the ceramic carbon composite (1) having the characteristics controlled without depending on the control of manufacturing conditions can be obtained.

Abstract: Provided is a novel method for producing a silicon carbide-carbon composite. A green body containing a carbonaceous material 2 having silicon nitride attached to a surface thereof is fired to obtain a silicon carbide-carbon composite 1.

Abstract: Provided is a novel method for producing a silicon carbide-carbon composite. A green body containing a carbonaceous material 2 having silicon nitride attached to a surface thereof is fired to obtain a silicon carbide-carbon composite 1.

Abstract: Provided are a joint of a metal material and a ceramic-carbon composite material which can be used at high temperatures, a method for producing the same, a novel carbon material joint, a jointing material for a carbon material joint, and a method for producing a carbon joint. A joint 6 of a metal material 4 and a ceramic-carbon composite material 1 is a joint of a metal material 4 made of metal and a ceramic-carbon composite material 1. The ceramic-carbon composite material 1 includes a plurality of carbon particles 2 and a ceramic portion 3 made of ceramic. The ceramic portion 3 is formed among the plurality of carbon particles 2. The metal material 4 and the ceramic-carbon composite material 1 are joined through a joining layer 5. The joining layer 5 contains a carbide of the metal and the ceramic.

Abstract: Provided are a metal-carbon composite material having good workability and a high carbon content and a method for producing the same. The metal-carbon composite material 1 includes a continuous metallic phase 3 and a plurality of carbon particles 2 dispersed in the metallic phase 3. The carbon content in the metal-carbon composite material 1 is 50% or more by volume.

Abstract: Provided is a method for producing a novel carbon member-inorganic member joined body. A carbon member-inorganic member joined body including a carbon member and an inorganic member joined together is produced. The carbon member-inorganic member joined body is obtained by forming on the carbon member a layer containing an inorganic material and a sintering aid, and heating the layer.

Abstract: Achieved is a ceramic carbon composite material and a ceramic-coated ceramic carbon composite material which are lighter than ceramics and excellent in at least one of properties including oxidation resistance, resistance to dust generation, heat conductivity, electrical conductivity, strength, and denseness. The ceramic carbon composite material is a ceramic carbon composite material in which an interfacial layer of a ceramic is formed between carbon particles of or containing graphite. The ceramic carbon composite material can be produced by forming a green body from ceramic-coated powder in which the surfaces of carbon particles of or containing graphite are coated with individual ceramic layers and sintering the green body.