Abstract: A capacitor of the present disclosure includes a first electrode, a second electrode, and a dielectric. The second electrode is disposed to face a principal surface of the first electrode. The dielectric is disposed between the first electrode and the second electrode. The dielectric is in contact with the first electrode and the second electrode. A surface of the second electrode extends, for example, parallel to a surface of the first electrode, the surfaces each being in contact with the dielectric. An electrical conductivity ?x of the dielectric in a particular direction perpendicular to the principal surface and an electrical conductivity ?y of the dielectric in a direction perpendicular to the particular direction satisfy a relation ?x/?y?0.01.

Abstract: A catalyst includes a layered double hydroxide and a metal particle. The layered double hydroxide includes ions of at least two transition metals. The metal particle includes at least one transition metal. The metal particle has a surface coated with the layered double hydroxide.

Abstract: In relation to application of artificial intelligence to image analysis of particles, to make it possible to provide data for machine learning corresponding to user demands while making it possible to reduce, as much as possible, man-hours taken to, for example, prepare vast amounts of actual image data obtained by actually capturing images of particles, the present invention generates virtual particle image data, which is image data of a virtual particle, on the basis of a predetermined condition, generates label data corresponding to the virtual particle, and associates the virtual particle image data with the label data.

Abstract: A layered double hydroxide of the present disclosure includes two or more transition metals and a chelating agent. The layered double hydroxide has an average particle diameter of 10 nm or less.