Abstract: Multi-coated nanoparticles including multiple coating layers of chitosan and polyglutamic acid, composition for skin care including the same, and method of manufacturing the same are provided. The nanoparticles have a liposome core layer and coating layers. The core layer includes a bioactive particle and a core hydrogel. Not only is it easy to mass-produce, but also has the effect of steadily releasing bioactive particles for a long period of time due to its high sealing rate and high stability.

Abstract: A chatbot server that provides an instant messaging service using a relay chatbot linked to multiple chatbots includes a receiving unit that receives, from a messenger server, a question message relevant to a service selected from multiple services and service account information corresponding to the selected service; a derivation unit that derives an answer to the question message using the relay chatbot corresponding to the service account information; and a transmission unit that transmits the answer to the messenger server, wherein the relay chatbot relays a user device to the multiple chatbots linked to the relay chatbot to derive the answer through at least one of the multiple chatbots.

Abstract: A preparation process of 5-ethylidene-2-norbornene, including: introducing dicyclopentadiene into a dicyclopentadiene decomposition reactor to thermally decompose the dicyclopentadiene; introducing a product of the above step into a cyclopentadiene purification tower; introducing 1,3-butadiene, a solvent, and cyclopentadiene separated from the top of the cyclopentadiene purification tower into a Diels-Alder reactor to react the same; introducing a product of the immediate above step into a 1,3-butadiene removal tower to recover 1,3-butadiene from the top; introducing a mixture at the bottom of the 1,3-butadiene removal tower into a desolvation tower, and recycling a solvent and unreacted raw materials recovered from the top of the desolvation tower to the dicyclopentadiene decomposition reactor; introducing a mixture at the bottom of the desolvation tower into a 5-vinyl-2-norbornene separation tower to separate 5-vinyl-2-norbornene; and introducing the 5-vinyl-2-norbornene into an isomerization reactor to rea

Abstract: Provided are a method and apparatus for providing a counseling service. A method of operating a counseling center server interworking with an instant messaging service includes providing a profile of at least one expert account for counseling linked to a channel of a second user to a terminal of a first user, identifying an initiation condition for a counseling ticket for counseling with a first expert account, creating a counseling ticket to be allocated to the first expert account, and transmitting counseling content through a chat room for counseling of the channel in which the first expert account and an account of the first user participate.

Abstract: A binder for a lithium-sulfur secondary battery cathode, a composition containing the same, and an acrylic binder capable of forming a cross-linked network and a use thereof. The binder contains a polar functional group capable of strongly interacting with sulfur.

Abstract: An air conditioning system for a vehicle includes an input device connected to an air conditioning device in which an air conditioning area of conditioned air is allocated to each discharge port; a temperature sensor that detects an indoor temperature or an outdoor temperature; and a controller that stores determination modes, determines a temperature or discharge area of the conditioned air depending on a difference between the indoor temperature and the outdoor temperature, and outputs a control signal to be transmitted to the input device. The air conditioning system can adjust the temperature and discharge direction of the conditioned air based on the outdoor temperature and an air conditioning load to optimize air conditioning efficiency.

Abstract: An air vent device for a vehicle includes an air guide configured to protrude towards a passage through which air flows, wherein a length of the air guide protruding into the passage is adjustable by rotation with respect to the passage.

Abstract: A printed circuit board includes a first insulating layer having a through cavity and containing an insulating material. A length between one side surface and the other side surface opposite to the one side surface of the through cavity is greater than a thickness of the first insulating layer, and the first insulating layer includes a recess located in each of an upper edge and a lower edge of the one side surface of the through cavity.

Abstract: A printed circuit board includes: a first insulating layer; a via pad disposed on an upper surface of the first insulating layer; a second insulating layer disposed on the upper surface of the first insulating layer and having a via hole exposing at least a portion of an upper surface of the via pad; a conductor pattern disposed on the exposed upper surface of the via pad; and a via including a first metal layer covering at least a portion of each of a wall surface of the via hole, the exposed upper surface of the via pad, and the conductor pattern, and a second metal layer disposed on the first metal layer and disposed in at least a portion of the via hole.

Abstract: A vehicle integrated controller includes: a board; an integrated pattern part positioned on the board; a touch integrated circuit (IC) part connected to the integrated pattern part to detect a change in a charge amount of the integrated pattern part; and a controller connected to the touch IC part and outputting an operation signal of a function corresponding to the change in a charge amount. A plurality of function patterns are arranged separately in the integrated pattern part. Each function pattern is configured to operate a plurality of different functions of a vehicle. The vehicle integrated controller may integrate switches having different functions with each other to display and implement the functions and may have a smaller overall size and a minimum number of touch input errors.

Abstract: A preparation process of 5-ethylidene-2-norbornene, including: introducing dicyclopentadiene into a dicyclopentadiene decomposition reactor to thermally decompose the dicyclopentadiene; introducing a product of the above step into a cyclopentadiene purification tower; introducing 1,3-butadiene, a solvent, and cyclopentadiene separated from the top of the cyclopentadiene purification tower into a Diels-Alder reactor to react the same; introducing a product of the immediate above step into a 1,3-butadiene removal tower to recover 1,3-butadiene from the top; introducing a mixture at the bottom of the 1,3-butadiene removal tower into a desolvation tower, and recycling a solvent and unreacted raw materials recovered from the top of the desolvation tower to the dicyclopentadiene decomposition reactor; introducing a mixture at the bottom of the desolvation tower into a 5-vinyl-2-norbornene separation tower to separate 5-vinyl-2-norbornene; and introducing the 5-vinyl-2-norbornene into an isomerization reactor to rea

Abstract: Provided are a curcumin nanoparticle complex having a modified particle surface and a method for preparing same. A curcumin nanoparticle complex includes curcumin and phospholipids and has a particle size of less than 1000 nm. A first coating layer containing a cationic material and/or a second coating layer containing an anionic material can be further added.

Abstract: Provided are a novel Lactiplantibacillus plantarum BNT_G401 strain and uses thereof. A method for manufacturing a ?-aminobutyric acid (GABA) containing fermented product includes (a) dissolving in water a Curcuma longa L. extract having a solid content of 0.5 to 10%; monosodium glutamate (MSG); a carbon source; and a nitrogen source, and sterilizing the same to manufacture a medium composition; (b) inoculating the medium composition with a Lactiplantibacillus plantarum strain; and (c) fermenting the medium composition in which the strain is inoculated to manufacture a GABA containing fermented product.

Abstract: The present invention relates to a particulate nano-lipid carrier for the encapsulation of a bioactive material, and a method for producing same, and more specifically, to a particulate nano-lipid carrier having excellent nanoparticle stability and improved encapsulation of water-soluble drugs. A nano-lipid carrier according to the present invention has significantly improved bioactive material stability and encapsulation efficiency compared to conventional carriers, and it is anticipated that the nano-lipid carrier according to the present invention will be immediately commercializable as a raw material for cosmetics by means of a hair follicle targeting production method suitable for mass production.

Abstract: A quick connector includes a housing having an insertion recess and a communication hole communicating with the insertion recess and formed in a direction perpendicular to the insertion recess, and a first fixing part having an arrest portion and an insertion guide protruding from the arrest portion in a direction toward an entrance of the insertion recess, wherein the arrest portion is inserted into the communication hole so that a lower end of the arrest portion is disposed in a position corresponding to the insertion recess, the first fixing part being coupled to the housing, so that the quick connector may be applied to a low-pressure side line in a fuel supply line of a vehicle, and since the quick connector has a simple structure, the quick connector may be easily manufactured and may be easily coupled and separated.

Abstract: A positive electrode slurry composition, a positive electrode manufactured using the same, and a battery including the positive electrode. The positive electrode slurry composition includes a positive electrode active material, a binder, an alcohol, and water, wherein a content of the alcohol is in a range of 0.1 to 10% by weight, based on a total weight of the composition. The slurry composition for manufacturing a positive electrode has effects of highly improving the dispersibility of the positive electrode active material and the conductive material, decreasing the surface roughness of an electrode, and remarkably reducing a curling phenomenon in the electrode. Also, the slurry composition has an economic advantage in that a dispersing agent is not used or an amount of the dispersing agent used can be remarkably reduced.

Abstract: A printed circuit board includes a first insulating layer having a through cavity and containing an insulating material. A length between one side surface and the other side surface opposite to the one side surface of the through cavity is greater than a thickness of the first insulating layer, and the first insulating layer includes a recess located in each of an upper edge and a lower edge of the one side surface of the through cavity.

Abstract: Provided are a method and apparatus for providing a counseling service. A method of operating a counseling center server interworking with an instant messaging service includes providing a profile of at least one expert account for counseling linked to a channel of a second user to a terminal of a first user, identifying an initiation condition for a counseling ticket for counseling with a first expert account, creating a counseling ticket to be allocated to the first expert account, and transmitting counseling content through a chat room for counseling of the channel in which the first expert account and an account of the first user participate.

Abstract: A method of operating a counseling center server interworking with an instant messaging service includes, in response to a request for opening a counseling center of a channel registered in the service, creating a counseling center module corresponding to the channel, receiving a search request based on a message transmitted to a chat room of the channel included in the counseling center module, transmitting a query corresponding to the search request to a search medium interworking with the counseling center module based on an interworking structure of the counseling center module, the search medium comprising at least one of a knowledge database and a chatbot, creating a search result corresponding to the search request based on a response to the query received from the search medium, and requesting an instant messaging server providing the service to transmit the search result through the chat room.

Abstract: The present disclosure relates to a novel pseudoceramide compound. More specifically, the present disclosure provides: a novel pseudoceramide compound represented by Formula 1, having skin moisturizing and barrier function restoring characteristics; and a composition for an externally-applied dermal preparation, the composition containing the novel pseudoceramide compound.