Abstract: The method comprises separating the outer green rind the room aloe vera leaf thereby cleaning and drying in sunlight for two days followed by oven drying at 80° C. for about 24 hours; pyrolyzing the dried outer green rind in an inert environment of N2 gas at 400° C. for about 1 hour to obtain a pre-carbonized carbon (AV-C); mixing the AV-C with K2CO3 in a 2:1 impregnation ratio to obtain a mixture;; pyrolyzing the mixture of the AV-C and K2CO3 at 900° C.; removing resulting black charred residue and cleaning the resulting charred residue with double-distilled water and isopropyl alcohol; homogenizing the cleaned black material of reduced graphene oxide using an ultrasonic homogenizer at 30% power for 1 hour with 10 pulse rates thereby drying and filtering the reduced graphene oxide to obtain 3D-HPN-rGO; h) preparing an electrode using the obtained 3D-HPN-rGO; and i) constructing a supercapacitor device using the electrodes.

Abstract: Provided is a mobile communication terminal customizing platform and a service method thereof.

Abstract: The present inventive concept provides a Theme Tok. The Theme Tok according to the present inventive concept includes: a decoration unit to which a theme decoration is attached; a grip unit configured of multi-stage folding bellows bodies, one side of which is coupled to the decoration unit; a fixing unit coupled to the other side of the grip unit and attached to a backside of a smartphone; an NFC tag embedded in the fixing unit to perform near-field communication with the smartphone; and a shielding unit embedded in the fixing unit to be disposed on one side of the NFC tag, wherein a unique authentication code of the theme decoration is stored in the NFC tag.

Abstract: Provided is a smart terminal accessory-based membership-only service platform and a method thereof. The smart terminal accessory-based membership-only service platform according to an embodiment of the present inventive concept includes: a management server for authenticating NFC information requested from a user terminal that identifies an NFC tag from a smart terminal accessory embedded with the NFC tag by means of NFC tagging, and registering the user terminal as a user of the smart terminal accessory; and a service server for registering and interconnecting the user terminal as a member in response to a request from the management server, and providing a membership-only service corresponding to the smart terminal accessory and requested from the user terminal.

Abstract: The present exemplary embodiments may provide a latent curing agent including an imidazole-based compound protected by a Diels-Alder reaction between a diene and a dienophile.

Abstract: The present disclosure relates to a spiropyran composite having improved mechano-sensitivity, a method for manufacturing the same, and a chromic article including the same. Particularly, the spiropyran composite is obtained by bonding spiropyran covalently to a polymer, an inorganic material or a mixture thereof to form spiropyran composite, and impregnating the spiropyran composite with a sensitivity-enhancing agent for a suitable time through a wet infiltration process to form non-polar environment at the inner part of the spiropyran composite, to cause pre-stretch and to increase a change in color or fluorescence in response to force, stress or strain, thereby providing significantly improved mechano-sensitivity. In addition, a wet filtration process is used and no expensive equipment is required to simplify the process. Further, the process can be performed rapidly within several minutes to reduce the processing time.

Abstract: An accessory for smart device according to an embodiment of the present inventive concept relates to an accessory for a smart device for running a unique content by a smart device of user comprising a NFC tag for performing short-range communication with the NFC reader included in the smart device, wherein: a unique authentication code and an unique content information of the accessory for the smart device are stored in the NFC tag, the smart device activates the unique content based on whether the unique authentication code is registered and the unique content information, when the NFC tag is tagged to the NFC reader, and the activated unique content is run on the smart device.

Abstract: The present disclosure relates to a spiropyran composite having improved mechano-sensitivity, a method for manufacturing the same, and a chromic article including the same. Particularly, the spiropyran composite is obtained by bonding spiropyran covalently to a polymer, an inorganic material or a mixture thereof to form spiropyran composite, and impregnating the spiropyran composite with a sensitivity-enhancing agent for a suitable time through a wet infiltration process to form non-polar environment at the inner part of the spiropyran composite, to cause pre-stretch and to increase a change in color or fluorescence in response to force, stress or strain, thereby providing significantly improved mechano-sensitivity. In addition, a wet filtration process is used and no expensive equipment is required to simplify the process. Further, the process can be performed rapidly within several minutes to reduce the processing time.

Abstract: Disclosed are a supramolecular structure including a plurality of first oligomers having a zwitterion at the terminal end and a plurality of second oligomers having a hydrogen-bondable functional group at the terminal end, wherein a supramolecule including the plurality of first oligomers and a supramolecule including the plurality of second oligomers form a three-dimensional network structure, and a method of manufacturing the same, a self-healing elastomer, a self-healing film, and an electronic device.

Abstract: Disclosed are a supramolecular structure including a plurality of first oligomers having a zwitterion at the terminal end and a plurality of second oligomers having a hydrogen-bondable functional group at the terminal end, wherein a supramolecule including the plurality of first oligomers and a supramolecule including the plurality of second oligomers form a three-dimensional network structure, and a method of manufacturing the same, a self-healing elastomer, a self-healing film, and an electronic device.

Abstract: Methods and an electronic device are provided for displaying one or more items. An aspect ratio of each of the items is determined. A full screen is divided into regions. Each of the regions has an aspect ratio that is the same as that of a respective one of the items. The items are simultaneously displayed in the regions.

Abstract: Disclosed is an ultrafine fiber including lignin, a carrier polymer and a carbon material. The ultrafine fiber, which includes lignin, can exhibit the properties of lignin such as antibacterial property, biodegradability, etc. Accordingly, it can be used widely in medical materials such as nanofiber, nanofiber web, nanofiber sheet, etc. for wound healing of the skin's dermal layer. Also, the ultrafine fiber can be used in sheath of electric cables because it contains a carbon material and has superior conductivity. In addition, because the ultrafine fiber can hold a large quantity of water, it can be used in various fields including sanitary pads for women, diapers for babies and adults, etc.

Abstract: Provided is a semiconductor device, including gate structures on a substrate, the gate structures extending parallel to a first direction and being spaced apart from each other by a separation trench interposed therebetween, each of the gate structures including insulating patterns stacked on the substrate and a gate electrode interposed therebetween; vertical pillars connected to the substrate through the gate structures; an insulating spacer in the separation trench covering a sidewall of each of the gate structures; and a diffusion barrier structure between the gate electrode and the insulating spacer.

Abstract: Disclosed is an ultrafine fiber including lignin, a carrier polymer and a carbon material. The ultrafine fiber, which includes lignin, can exhibit the properties of lignin such as antibacterial property, biodegradability, etc. Accordingly, it can be used widely in medical materials such as nanofiber, nanofiber web, nanofiber sheet, etc. for wound healing of the skin's dermal layer. Also, the ultrafine fiber can be used in sheath of electric cables because it contains a carbon material and has superior conductivity. In addition, because the ultrafine fiber can hold a large quantity of water, it can be used in various fields including sanitary pads for women, diapers for babies and adults, etc.

Abstract: Provided is an aerogel-containing heat insulation composite obtained by providing a volatile material to the pores of the aerogel, blending the aerogel with a polymer resin, particularly a flexible polymer resin, to form a composite, and removing the volatile material. Thus, it is possible to prevent a decline of the porosity of the aerogel caused by infiltration and impregnation of the pores of the aerogel with the resin. As a result, the aerogel-containing heat insulation composite, particularly containing a high content of aerogel, may retain the heat insulation property of the aerogel as well as the flexibility of the plastic material.

Abstract: Provided are a carbon nanotube composite containing a carbon nanotube coated with a protein having a catechol group and a metal ion bound to the catechol group and a method for manufacturing the same. According to the present disclosure, a carbon nanotube composite which exhibits controllable dispersibility and degree of crosslinkage while retaining the intrinsic physical properties of the carbon nanotube may be prepared. Since the phase change and tendency of aggregation of the carbon nanotube composite can be controlled quickly and repeatedly depending on the change in external environment, the carbon nanotube composite may be useful in various industrial fields including medicine, environment, etc. as a self-healing material.

Abstract: Disclosed are lignin microcapsules including lignin as a shell material and at least one of oil and a carbonaceous material as a core material. The lignin microcapsules may be formed by carried out polymerization in an oil-in-water emulsion including lignin, oil and water and further including a carbonaceous material. Since lignin has a phenol structure, the microcapsules including lignin may be formed to have antibacterial property. Thus, the lignin microcapsules may be used widely in various fields, such as additives for composite materials.

Abstract: Methods and an electronic device are provided for displaying one or more items. An aspect ratio of each of the items is determined. A full screen is divided into regions. Each of the regions has an aspect ratio that is the same as that of a respective one of the items. The items are simultaneously displayed in the regions.