Abstract: A lidar sensor device according to an embodiment includes a data generation unit that generates light identification data, an optical modulation unit that generates a plurality of modulated signals for the optical identification data by performing orthogonal frequency division multiplexing (OFDM) modulation on the optical identification data and generates a plurality of laser signals respectively corresponding to the plurality of modulated signals and having different frequencies, and a transmission unit that simultaneously transmits the plurality of laser signals to different measurement points according to the frequencies, respectively.

Abstract: The present invention related to an ionically bonded compound of polyethylene-cholic acid for gene transfer and a use thereof and, more specifically, to a compound in which polyethylenimine and cholic acid are ionically bonded to each other, a preparation method therefor, a gene transfer method thereof, and a use thereof for gene transfer.

Abstract: Provided is a jamming defense system. In the jamming defense system for wireless local area network communication between an access point (AP) and a user node, the AP that transmits and receives a message to and from the user node generates an AP secret key value by measuring a signal reception strength for the message, and the user node that transmits and receives a message to and from the AP generates a user node secret key value by measuring a signal reception strength for the message.

Abstract: A fine particle separating apparatus includes a first filter having a first mesh, the first filter having a first section and a second section with the first mesh therebetween and rotatably mounted in the first filter part. A first flow path allows sludge to flow into the first filter, a second flow path allows an effluent from the first filter party to flow therein, and a third flow path is provided to discharge the effluent from the second flow path to the outside. At least a portion of the effluent flowing into the second flow path is provided to the first filter part in a fluid loop along a fourth flow path, and a fifth flow path is defined in the first section to allow the effluent from the fourth flow path to pass through the first filter part. A storage tank and a pump are also provided.

Abstract: A learning apparatus for image generation includes a preprocessing module configured to receive text for image generation and generate a sentence feature vector and a word feature vector from the received text, a first generative adversarial network (GAN) configured to receive the sentence feature vector from the preprocessing module and generate an initial image based on the received sentence feature vector, and a second generative adversarial network configured to receive the word feature vector generated by the preprocessing module and the initial image generated by the first generative adversarial network and generate a final image based on the word feature vector and the initial image.

Abstract: Disclosed is an apparatus for capturing bioaerosols. More particularly, the apparatus for capturing bioaerosols includes a sprayer configured to spray a buffer solution for protecting aerosol particles in a form of droplets; and a capturer into which air including the droplets and the aerosol particles is introduced and in a capture solution in which the aerosol particles are captured, wherein discharge members provided with a plurality of nanostructures are provided on a surface of the capturer to charge the aerosol particles. Due to such a configuration, high discharge efficiency can be anticipated even at a low voltage without damage to aerosol particles.

Abstract: A user authentication method performed in an unmanned delivery system including a server, a buyer customer device, a deliveryman customer device, and an autonomous delivery vehicle includes: generating, by the server, a session key based on order information received from the buyer customer device, and transmitting the generated session key to the deliveryman customer device and the buyer customer device; generating, by the deliveryman customer device, a One-Time Password (OTP) based on the session key; applying, by the deliveryman customer device as a first application step, a hash function to the OTP a first predetermined number of times; additionally applying, by the deliveryman customer device as a second application step, the hash function to the OTP generated in the first application step a second predetermined number of times; and generating, by the deliveryman customer device, a first Quick Response (QR) code based on the OTP generated in the second application step.

Abstract: An apparatus for measuring a position according to an embodiment includes a light source emitting light to an inner surface of a pipe, a first lens receiving reflected light from which light emitted by the light source is reflected by the inner surface and converting the reflected light into parallel light parallel to an optical axis, a second lens disposed on an optical path of the parallel light and converting the parallel light into a convergent refracted light, an image sensor disposed on an optical path of the refracted light, one or more elastic members disposed between the first lens and the second lens, and a plurality of wheels that are coupled to a side surface of the first lens and are in close contact with the inner surface to be rotated by movement of the moving body.

Abstract: The present disclosure relates to a novel personal sampler for bioaerosols and the method of making and using the personal sampler.

Abstract: The present invention relates to a hydrophilic separation membrane polymer composition containing a sulfonated graphene oxide and a sulfonated carbon nanotube, and a hydrophilic separation membrane fabricated therefrom. A hydrophilic separation membrane according to the present invention has the advantage of being very high in water permeability and excellent in anti-fouling properties.

Abstract: Disclosed in the present specification are an apparatus and a method capable of quickly verifying a plurality of micro LEDs. An LED verification substrate according to the present specification is a micro LED verification substrate having a plurality of verification chips, wherein each verification chip can comprise: a first contact deposited on the upper side of a lower substrate; a first passivation layer deposited on the upper side of the first contact; a second contact deposited on the upper side of the first passivation layer; a second passivation layer deposited on the upper side of the second contact; a first bump electrically connected to the first contact and protruding above the upper surface of the second passivation layer; and a second bump electrically connected to the second contact and protruding above the upper surface of the second passivation layer.

Abstract: The present invention relates to an antiviral composition and a screening method thereof for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that occurred in Wuhan, China in 2019. An extract from leaves or unfertilized female flowers of Cannabis sativa L. or its fraction, and the cannabinoids (CBDs) molecules isolated from it have high binding strength and stability to SARS-CoV-2 MPpro, thereby inhibiting its action as the main protease, to provide a useful lead molecule that can be used alone or in combination with other drugs to treat SARS-CoV-2.

Abstract: The present invention relates to a ruthenium thin film-forming method for forming a ruthenium thin film using a ruthenium precursor, in which tricarbonyl (?4-methylene-1,3-propanediyl) ruthenium ((CO)3Ru-TMM)) having a structure represented by the following formula 1 is used as the ruthenium precursor, and the method includes a stage of forming a ruthenium thin film by an atomic layer deposition at a temperature ranging from 200° C. to 350° C. using this ruthenium precursor and a reaction gas. As the reaction gas, one or more selected from the group consisting of oxygen, hydrogen, water and ammonia are preferably applied.

Abstract: The present invention relates to an artificial bladder system having a double space divided by a partition wall and a wireless, non-powered urine fullness sensor using an RFID technology, which provides an artificial bladder system comprising: an outer wall that forms the outer shape of the artificial bladder, is inserted into the body, and has an inner space; a partition wall, wherein both ends are fixed to the inside of the outer wall, the inner space of the outer wall is divided into a double space of a urine reservoir and a working fluid space, and it is deformable according to amounts of the urine and the working fluid; and a urine fullness sensor installed in the working fluid space and sensing a urine fullness degree based on the deformation of the partition wall.

Abstract: The present disclosure relates to spheroids for suppressing immune rejection including mesenchymal stem cells and rapamycin microparticles, uses thereof, and a preparation method thereof, wherein the spheroids includes the mesenchymal stem cells and rapamycin microparticles have increased PD-L1 expression of mesenchymal stem cells by the rapamycin microparticles such that the spheroids in which PD-L1 expression on the surface is increased suppress T cells and inflammatory responses that induce immune rejection to the pancreatic islet cells transplanted in vivo, thereby exhibiting the effect of maintaining a survival period and insulin secretion functions of transplanted pancreatic islet cells for a long time.

Abstract: According to an aspect of embodiments, a method of generating an image by using LiDAR includes performing a reconstruction of a two-dimensional reflection intensity image, the performing of the reconstruction including projecting three-dimensional reflection intensity data that are measured by using the LiDAR as the two-dimensional reflection intensity image, and the method includes generating a color image by applying a projected two-dimensional reflection intensity image to a Fully Convolutional Network (FCN).

Abstract: The present invention relates to an antibacterial and biofilm formation-inhibiting composition containing myristoleic acid as an active ingredient, wherein the myristoleic acid has been confirmed to exhibit an antibacterial effect against acne bacterium (Cutibacterium acnes) and Staphylococcus aureus, which cause skin inflammation and trouble, and to effectively inhibit the biofilms of Cutibacterium acnes and Staphylococcus aureus, at a very low concentration, and thus, the composition containing myristoleic acid as an active ingredient can be provided as an antibacterial agent and an anti-biofilm composition, and can be provided as a cosmetic composition for ameliorating skin inflammatory diseases.

Abstract: A handover method for managing WBSS vehicle network managed by a WESS-CM includes: recognizing that a vehicle enters an overlapped area between first and second WBSSs; sending, by the first WBSS, a handover recommend request to the WESS-CM; confirming with the second WBSS, by the WESS-CM, whether handover is possible; responding to the WESS-CM, by the second WBSS, the availability of the handover after allocating communication resources; sending, by the WESS-CM, a handover recommend response to the first WBSS; transmitting, by the first WBSS, a handover request message to the vehicle; performing the handover, by the vehicle, by performing reassociation with the second WBSS; and periodically broadcasting, by the vehicle, basic safety message using a T-slot in shared control channel and a T-slot in BSM channel for the second WBSS, while the vehicle is located in the overlapped area.

Abstract: A learning apparatus for creating an emotion expression video according to an embodiment disclosed include first generative adversarial networks (GAN) that receive text for creating an emotion expression video, extract vector information by performing embedding on the input text, and create an image based on the extracted vector information, and second generative adversarial networks that receive an emotion expression image and a frame of comparison video, and create a frame of emotion expression video from the emotion expression image and the frame of comparison video.

Abstract: An apparatus for Internet of Things (IoT) registration includes a beacon frame transmitting unit for transmitting a beacon frame to a plurality of stations, an authentication unit that receives an authentication request frame from the plurality of stations in a first method, and an association unit that transmits an authentication response frame or an association response frame to the plurality of stations in a second method.