Abstract: A method for estimating locomotion in virtual reality performed by at least one processor includes measuring a plurality of pressure points according to a user's locomotion using a high-resolution tactile sensor including a plurality of pressure sensors, extracting a plurality of footprint images including the plurality of measured pressure points, clustering the plurality of pressure points into a first set of pressure points corresponding to a left foot and a second set of pressure points corresponding to a right foot, based on the plurality of extracted footprint images, and estimating at least a portion of a locomotion direction and a locomotion speed of the user using a first cluster corresponding to the first set of pressure points and a second cluster corresponding to the second set of pressure points.

Abstract: An organic hole transport material according to an embodiment of the present disclosure is an organic hole transport material doped with an acid-base adduct, in which the acid-base adduct is formed by an acid-base reaction involving an acid and a base, and the acid contains hydrogen ions (H+) and has the formula H+X?, where H+ corresponds to a hydrogen ion, and X? corresponds to an anion and corresponds to TFSI?.

Abstract: A spirobifluorene compound and a perovskite solar cell including the spirobifluorene compound are disclosed. More particularly, a spirobifluorene compound which can be used as a hole transport material of a perovskite solar cell is disclosed. A perovskite solar cell including the spirobifluorene compound as a hole transport material is further disclosed.

Abstract: Provided is a perovskite solar cell, and more particularly, a perovskite solar cell including an organometal halide layer having a perovskite structure; and a crystalline material layer stacked while forming an interface with the organometal halide layer, wherein a crystalline material of the crystalline material layer is a crystalline halide having a crystal structure different from the perovskite structure, and the crystalline halide has a band gap energy higher than a band gap energy of an organometal halide of the organometal halide layer, and has a valence band maximum energy level lower than a valence band maximum energy level of the organometal halide.

Abstract: A terminal device for generating user behavior data, a method for generating user behavior data, and a recording medium are provided. The disclosed terminal device may include a memory unit storing instructions readable by a computer; and a processor unit implemented to execute the instructions, where the processor unit may compute a probability distribution model for achieving the intentions of a user by using raw data related to time-dependent actions of the user and may generate user behavior data by using the probability distribution model, with the user behavior data comprising time series data in which multiple actions composing the intentions of the user are aligned in order.

Abstract: A perovskite solar cell adopts a compound having a specific central backbone having a carbazolylamino group as a substituent, and more particularly, to the perovskite solar cell adopts a compound, as a hole transport material, having a specific central backbone having a carbazolylamino group as a substituent, and a spirobifluorene compound having a carbazolylphenylamino group. The perovskite solar cell has very excellent high-temperature stability while having a high power generation efficiency.

Abstract: The present invention relates to an inorganic/organic hybrid perovskite compound film. An inorganic/organic hybrid perovskite compound film according to the present invention is polycrystalline, and has a discontinuous (100) plane scattering intensity on a grazing incidence wide angle x-ray scattering (GIWAXS) spectrum obtained using an x-ray wavelength of 1.0688 ?.

Abstract: The present invention relates to a method for preparing an inorganic/organic hybrid perovskite compound film, and a structure for a solar cell and, specifically, a method for preparing an inorganic/organic hybrid perovskite compound film, according to one embodiment of the present invention, can comprise the steps of: a) forming, on a substrate layer, an adduct layer containing an adduct of halogenated metal and guest molecule; and b) preparing an inorganic/organic hybrid perovskite compound film by reacting the adduct layer and an organic halide.

Abstract: A perovskite solar cell adopts a compound having a specific central backbone having a carbazolylamino group as a substituent, and more particularly, to the perovskite solar cell adopts a compound, as a hole transport material, having a specific central backbone having a carbazolylamino group as a substituent, and a spirobifluorene compound having a carbazolylphenylamino group. The perovskite solar cell has very excellent high-temperature stability while having a high power generation efficiency.

Abstract: A method for manufacturing a device comprising an inorganic/organic hybrid perovskite compound film, according to the present invention, comprises the steps of: a) laminating a first structure and a second structure to allow the first surface layer and the second surface layer to be in contact with each other, the first structure comprising a first surface layer containing at least one of materials i) to v) below, the second structure comprising a second surface layer containing, independently from the first surface layer, at least one of materials i) to v) below; and b) applying heat and physical force to the laminate in which the first structure and the second structure are laminated: i) an inorganic/organic hybrid perovskite compound, ii) an organic halide, iii) a metal halide, iv) an inorganic/organic hybrid perovskite compound precursor, and v) a metal halide precursor.

Abstract: A spirobifluorene compound and a perovskite solar cell including the spirobifluorene compound are disclosed. More particularly, a spirobifluorene compound which can be used as a hole transport material of a perovskite solar cell is disclosed. A perovskite solar cell including the spirobifluorene compound as a hole transport material is further disclosed.

Abstract: A terminal device for generating user behavior data, a method for generating user behavior data, and a recording medium are provided. The disclosed terminal device may include a memory unit storing instructions readable by a computer; and a processor unit implemented to execute the instructions, where the processor unit may compute a probability distribution model for achieving the intentions of a user by using raw data related to time-dependent actions of the user and may generate user behavior data by using the probability distribution model, with the user behavior data comprising time series data in which multiple actions composing the intentions of the user are aligned in order.

Abstract: The present invention relates to an inorganic/organic hybrid perovskite compound film. An inorganic/organic hybrid perovskite compound film according to the present invention is polycrystalline, and has a discontinuous (100) plane scattering intensity on a grazing incidence wide angle x-ray scattering (GIWAXS) spectrum obtained using an x-ray wavelength of 1.0688 ?.

Abstract: Provided is a precursor of an inorganic/organic hybrid perovskite compound, and the precursor of the precursor of the inorganic/organic hybrid perovskite compound according to an exemplary embodiment of the present invention includes an organic positive ion, a metal positive ion, a halogen negative ion, and a guest molecule (GM).

Abstract: Provided is a perovskite solar cell, and more particularly, a perovskite solar cell including an organometal halide layer having a perovskite structure; and a crystalline material layer stacked while forming an interface with the organometal halide layer, wherein a crystalline material of the crystalline material layer is a crystalline halide having a crystal structure different from the perovskite structure, and the crystalline halide has a band gap energy higher than a band gap energy of an organometal halide of the organometal halide layer, and has a valence band maximum energy level lower than a valence band maximum energy level of the organometal halide.

Abstract: Provided are a porous metal halide film that reacts with an organic halide to be converted into an organometal halide having a perovskite structure, thereby fabricating the organometal halide, a fabrication method thereof, and a fabrication method of an organometal halide having a perovskite structure using the same, and specifically, the porous metal halide film according to the present disclosure satisfies Relational Expression 1 below: I(101)/I(001)?0.5??(Relational Expression 1) in Relational Expression 1, I(101) is a diffraction intensity of a (101) plane in X-ray diffraction pattern using a Cu K? line of the porous metal halide film, and I(001) is a diffraction intensity of the (001) plane in the same X-ray diffraction pattern.

Abstract: A method for manufacturing a device comprising an inorganic/organic hybrid perovskite compound film, according to the present invention, comprises the steps of: a) laminating a first structure and a second structure to allow the first surface layer and the second surface layer to be in contact with each other, the first structure comprising a first surface layer containing at least one of materials i) to v) below, the second structure comprising a second surface layer containing, independently from the first surface layer, at least one of materials i) to v) below; and b) applying heat and physical force to the laminate in which the first structure and the second structure are laminated: i) an inorganic/organic hybrid perovskite compound, ii) an organic halide, iii) a metal halide, iv) an inorganic/organic hybrid perovskite compound precursor, and v) a metal halide precursor.

Abstract: The present invention relates to a method for preparing an inorganic/organic hybrid perovskite compound film, and a structure for a solar cell and, specifically, a method for preparing an inorganic/organic hybrid perovskite compound film, according to one embodiment of the present invention, can comprise the steps of: a) forming, on a substrate layer, an adduct layer containing an adduct of halogenated metal and guest molecule; and b) preparing an inorganic/organic hybrid perovskite compound film by reacting the adduct layer and an organic halide.

Abstract: Provided is a perovskite solar cell having remarkably excellent heat resistance, durability, and photoelectric conversion efficiency by employing a phthalocyanine derivative as a hole transport material.

Abstract: The aim of the present invention is to provide a waveguide capable of transmitting shear waves in a desired pattern to a bulk-type medium, a vibrator, and a method of transmitting shear waves by using the vibrator. To this end, the present invention provides a waveguide including a vibrating portion that is vibrated by a vibrating unit, a transmitting portion that transmits shear waves generated by the vibrating unit to a bulk-type medium and is thicker than the vibrating portion, and a connecting portion that contacts both the vibrating portion and the transmitting portion and has a thickness varying from a portion contacting the vibrating portion to a portion contacting the transmitting portion. Also, the present invention provides a vibrator using the waveguide and a method of transmitting shear waves by using the vibrator.