Abstract: Disclosed is an ionomer for a high-temperature polymer electrolyte membrane fuel cell, which includes a phosphorus (P)-containing functional group having proton conductivity and partially contains fluorine in the main chain thereof.

Abstract: The present application relates to a novel strain of the genus Schizochytrium (Schizochytrium sp.) and a method of producing polyunsaturated fatty acids by using the same. According to one aspect, novel microalgae of the genus Schizochytrium have a high content of fat in biomass, and particularly, a high content of polyunsaturated fatty acids such as docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), and therefore, the microalgae, and biomass or bio-oil prepared therefrom, may be useful as a feed source or the like.

Abstract: A method for manufacturing a gas diffusion layer for a fuel cell wherein carbon nanotubes are impregnated into Korean paper, thereby enhancing electroconductivity, and a gas diffusion layer manufactured thereby. The method for manufacturing a gas diffusion layer for a fuel cell which is to manufacture a gas diffusion layer as a constituent member of a unit cell in a fuel cell, includes a support preparation step of preparing a support with Korean paper; a dispersion preparation step of dispersing a carbon substance in a solvent to form a dispersion, a coating step of coating the support with the dispersion, and a thermal treatment step of thermally treating the dispersion-coated support to fix the carbon substance to the support.

Abstract: Provided is a composition for surface treatment of a steel sheet, the composition having excellent resistance to an acid, such as sulfuric acid, and to a coated steel sheet to which the composition for surface treatment is applied, wherein the composition for surface treatment comprises 30-50% wt % of colloidal silica containing 5-20 nm-sized silica, 40-60% wt % of silane containing three or more alkoxy groups, 5-15 wt % of an acrylate-based organic monomer, 0.01-1 wt % of an acid, and 1-15 wt % of a solvent.

Abstract: An embodiment sulfur dioxide-based inorganic electrolyte is provided in which the sulfur dioxide-based inorganic electrolyte is represented by a chemical formula M·(A1·Cl(4-x)Fx)z·ySO2. In this formula, M is a first element selected from the group consisting of Li, Na, K, Ca, and Mg, A1 is a second element selected from the group consisting of Al, Fe, Ga, and Cu, x satisfies a first equation 0?x?4, y satisfies a second equation 0?y?6, and z satisfies a third equation 1?z?2.

Abstract: A three-dimensional modeling method according to the present invention includes: a scan step of scanning a subject to be filtered so as to obtain at least one set of image data; a step of determining a reference color or a reference color range from a color included in the image data obtained in the scan step and filtering the reference color or the reference color range; and a step of generating a three-dimensional surface model of a subject to be modeled by scanning the subject to be modeled, wherein the step of generating the three-dimensional surface model includes excluding the reference color or the reference color range to generate the three-dimensional surface model.

Abstract: An electronic device of the present disclosure is configured to acquire first scan data by a first scan performed by a three-dimensional scanner to scan an oral cavity of a subject, acquire second scan data by a second scan performed by the three-dimensional scanner to scan an impression model modeled on the oral cavity of the subject, invert one of the first scan data and the second scan data, determine whether an overlapping area exists between inverted scan data and non-inverted scan data, among the first scan data and the second scan data, and generate, if the overlapping area exists, a three-dimensional image model for the oral cavity of the subject by aligning the inverted scan data and the non-inverted scan data based on the overlapping area.

Abstract: A method for supplementing scan data by using library data according to the present invention comprises: a scan step of acquiring scan data of a subject including a structure; a step of selecting library model data corresponding to the structure; and a step of post-processing the scan data, wherein the library model data is added at the step of post-processing of the scan data and is post-processed together with the scan data. Accordingly, the scan data in which distortion or a data gap has occurred is supplemented by the library model data, and thus a user acquires a highly reliable three-dimensional model.

Abstract: A method for using an integrated library according to the present invention is characterized in that when a user selects a target position, an abutment to be applied to an oral cavity of a patient is loaded, and when an abutment model is selected in a database thereof, margin line data linked with the selected abutment model can be displayed together. In addition, the margin line data is not only simply displayed in a thumbnail displaying step, but also can be linked with oral data to be used together. The margin line data can also be edited so as to have a more appropriate form according to the user's need and be stored, such that the existing margin line data can be substituted with edited margin line data.

Abstract: The present invention relates to a method of processing three-dimensional scan data for manufacture of dental prosthesis, the method identifies a position for an implant procedure on the basis of image data for an oral structure, and generates aligned image data by retrieving, from a library, data corresponding to a scan body or an abutment, only a part of which has been scanned, by replacing a part or the whole of the image data with the retrieved data, and by aligning a position and a direction of the image data. By using the method, user can easily identify an oral structure from the image data obtained by scanning partial shape of the scan body or the abutment, and the method provides feedback to the user so that the method guides the user to correct measurement. Therefore, the prosthesis can be manufactured more quickly due to reduced scan time.

Abstract: The present invention relates to a digital scan body alignment method and a device using the same. The present invention corrects scan data through library data corresponding to image data on oral structure. At that time, to achieve best-fit of aligning the library data to the scan data initially, the data alignment can be performed by using a first alignment step. In order to accomplish data correction by more accurate data alignment, a second alignment step can be performed using the library data which includes shape information and axis information. By performing the second alignment step, corrected data having higher reliability can be formed, and a more precise prosthesis can be provided to a patient.

Abstract: According to a combined intraoral and impression scanning system and method of the present invention, intraoral scan data of an intraoral object can be obtained and stored, and impression scan data of the oral object can be selectively stored from an intraoral scan data area that satisfies a preset determination condition. By applying the intraoral scan data area corresponding to the preset determination condition as the impression scan data, highly reliable final scan data can be obtained and a precise prosthesis can be manufactured.

Abstract: In method for replaying a scanning process according to the present invention, position information and rotation information of a scanner are acquired while scanning a scan target is a scanning step, and the distance relationship and angle relationship with the scan target can be calculated according to the position information and rotation information of the scanner. The acquired information and relationship values can be linked with a scan time and stored, and scanning data, along with the acquired information, can be sequentially displayed over time in a display step. According to the method for replaying a scanning process, the process of scanning performed by a user can be examined in chronological order, and the examination process can be quickly performed by controlling replay speed and selecting scan time.