Abstract: A quantum dot including a core that includes a first semiconductor nanocrystal including zinc and selenium, and optionally sulfur and/or tellurium, and a shell that includes a second semiconductor nanocrystal including zinc, and at least one of sulfur or selenium is disclosed. The quantum dot has an average particle diameter of greater than or equal to about 13 nm, an emission peak wavelength in a range of about 440 nm to about 470 nm, and a full width at half maximum (FWHM) of an emission wavelength of less than about 25 nm. A method for preparing the quantum dot, a quantum dot-polymer composite including the quantum dot, and an electronic device including the quantum dot is also disclosed.

Abstract: A method for production of red ginseng hydrolysis concentrate according to an embodiment of the present disclosure includes carrying out an enzyme reaction of red ginseng concentrate by adding an enzyme solution followed by addition of alcohol to prepare a mixture solution of red ginseng and alcohol, and centrifuging the prepared mixture solution of red ginseng and alcohol followed by concentration under reduced pressure of a supernatant separated by the centrifuge, and a red ginseng hydrolysis concentrate produced by the aforementioned process.

Abstract: A method for producing black ginseng concentrate is characterized by including steps of adding red ginseng to a continuous steaming-dryer followed by steaming, cooling, and drying to prepare black ginseng, carrying out extraction by adding alcohol to crushed black ginseng obtained by crushing the black ginseng prepared above followed by filtration to prepare black ginseng extract, and concentrating the black ginseng extract prepared above by using a plate type evaporative concentrator followed by heat treatment, and the present invention also relates to black ginseng concentrate prepared by the aforementioned method.

Abstract: A method for production of red ginseng hydrolysis concentrate according to an embodiment of the present disclosure includes carrying out an enzyme reaction of red ginseng concentrate by adding an enzyme solution followed by addition of alcohol to prepare a mixture solution of red ginseng and alcohol, and centrifuging the prepared mixture solution of red ginseng and alcohol followed by concentration under reduced pressure of a supernatant separated by the centrifuge, and a red ginseng hydrolysis concentrate produced by the aforementioned process.

Abstract: Embodiments of the disclosure relate to methods for recognizing characters displayed on a display and devices for supporting the same. According to an embodiment, an electronic device may comprise a housing, a touchscreen display exposed through a portion of the housing, a processor electrically connected to the touchscreen display, and a memory electrically connected with the processor, wherein the memory may store instructions to, when the electronic device is operated, enable the processor to display a user interface including text having a plurality of words, detect a first position of an external object on or adjacent the touchscreen display, determine a single word at least partially based on the first position, provide a translation of the single word in a first mode, detect a second position of the external object on or adjacent the touchscreen display, determine two or more words at least partially based on the second position, and provide a translation of the two or more words in a second mode.

Abstract: Disclosed are a method for manufacturing a frame for a Braun tube and a base material used therefor. The base material has a rectangular plate-shaped configuration obtained by machining a metal plate-shaped strap. The base material possesses an extended guide opening defined at a center portion thereof, the extended guide opening having a shape which is similar to the configuration of the base material and a dimension which is smaller than the base material. The base material further possesses a plurality of extended rupture-preventing grooves each defined at a corner portion of the extended guide opening to be communicated therewith, the extended rupture-preventing grooves having a diameter which is smaller than that of the extended guide opening. The strap has a pair of deformation-preventing notches formed on both side edge surfaces thereof, respectively, at a boundary region between two adjacent base materials, each notch having a bottom portion which extends parallel to the edge surface of the strap.