Abstract: Embodiments of the present invention provide a method of manufacturing an eco-friendly biodegradable nonwoven fabric, the method including spinning a biodegradable resin composition to manufacture biodegradable yarns; cooling the biodegradable yarns; and combining the cooled biodegradable yarns to form a biodegradable yarn web, wherein the biodegradable resin composition includes a first biodegradable resin, the first biodegradable resin includes diol, aromatic dicarboxylic acid and aliphatic dicarboxylic acid, and the biodegradable resin composition has a crystallization temperature of 70° C. to 130° C.; a biodegradable yarn; and a biodegradable nonwoven fabric including the biodegradable yarn.

Abstract: Provided are a method of manufacturing a biodegradable nonwoven fabric and a biodegradable nonwoven fabric manufactured by the method. The method includes preparing a biodegradable resin solution including a biodegradable resin composition, which includes a first biodegradable resin, and an organic solvent. The biodegradable resin solution is then spinned by applying a voltage to the biodegradable resin solution. The first biodegradable resin includes diol, aromatic dicarboxylic acid, and aliphatic dicarboxylic acid.

Abstract: The present invention relates to a pharmaceutical composition for preventing or treating cancer comprising a Salmonella strain and an immune checkpoint inhibitor as active ingredients. The composition of the present invention may be useful as a prophylactic or therapeutic composition of improving the survival rate by significantly reducing the tumor size by co-administering bacteria and an immune checkpoint inhibitor in cancer, especially a type of cancer that is resistant and difficult to treat by a single anticancer therapy.

Abstract: An antenna unit having a slot structure capable of achieving maximum emission efficiency and a substrate treating apparatus including the antenna unit are provided. The substrate treating apparatus includes: a chamber housing; a substrate support unit supporting a substrate; a showerhead unit providing a process gas, which is for treating the substrate, onto the substrate; a plasma generation unit including a high-frequency power source and generating plasma in an internal space of the chamber housing using the process gas and power provided by the high-frequency power source; and an antenna unit connected to the high-frequency power source and operating as an electrode for generating the plasma, wherein the antenna unit includes a plurality of slot pairs, which are formed in a slot plate, and the slot pairs are arranged radially from a central region of the slot plate.

Abstract: Provided is a biodegradable yarn, comprising: a first biodegradable resin composition comprising a first biodegradable resin, wherein the first biodegradable resin includes diol, aromatic dicarboxylic acid and aliphatic dicarboxylic acid, and the first biodegradable resin composition has a melt index of 6 g/10 minutes to 15 g/10 minutes at 190° C. and a crystallization temperature of 40° C. to 85° C.

Abstract: The present disclosure relates to a DNA construct, and a strain into which a recombinant vector comprising the DNA construct has been introduced. The DNA construct according to the present disclosure allows the expression of anticancer genes, operably linked downstream of first and second promoters, in a host strain or cell, to prevent and treat cancer. In addition, the DNA construct of the present invention can control the treatment of doxycycline so that the anticancer protein can be expressed at an appropriate dose for cancer treatment.

Abstract: A xylylene diisocyanate (XDI) composition according to exemplary embodiments includes xylylene diisocyanate and an acidity regulator having a boiling point of 110° C. or higher, and the composition has an acidity of greater than 100 ppm and 1,000 ppm or less based on a total weight of the xylylene diisocyanate (XDI). An optical lens having a high transmittance and improved optical uniformity can be manufactured by controlling a polymerization reaction rate through acidity adjustment.

Abstract: The present invention provides a novel protein specifically binding to calreticulin and having the scaffold of human fibronectin domain III and a use thereof, wherein the protein can be used for diagnosing cell damage in an early stage to early determine cancer therapy effects and rapidly evaluate in vivo toxicity, thus finding advantageous applications as a candidate material for probes for in vivo diagnosis and treatment of cancer.

Abstract: The present invention relates to a chamber environment controlling apparatus for a three-dimensional bioprinter including a printing chamber having an internal space in which printing is performed and which is defined by wall surfaces including sidewalls. The apparatus may include a temperature adjustor including a heater configured to heat the internal space of the printing chamber and an air circulator including an air guide portion extending from an outside of the printing chamber along a sidewall on one side and formed so that air flowing in through an inlet moves along an inside, is heated by the temperature adjustor, and is discharged into the internal space of the printing chamber through an outlet, a circulation fan configured to circulate air along the air guide portion, and a filter configured to filter the air circulating along the air guide portion.

Abstract: A polythiol composition according to exemplary embodiments includes a first polythiol compound and a second polythiol compound having a molecular weight greater than that of the first polythiol compound and the number of functional groups greater than or equal to the number of functional groups of the first polythiol compound. A content of the second polythiol compound is 500 ppm to 20,000 ppm based on a weight of the first polythiol compound. The reaction rate of an isocyanate-based compound may be controlled through the second polythiol compound, thus to suppress a stria phenomenon and improve mechanical properties of an optical product.

Abstract: The present specification discloses a method capable of automatically recognizing an accurate wound boundary and a method of generating a 3D wound model based on the recognized wound boundary. The method of automatically recognizing a wound boundary according to the present specification is a method of automatically recognizing a wound boundary based on artificial intelligence, and may photograph several frames of the wound to be recognized with an RGB-D camera, separating measurement information in an image, amplifying image data for learning, and passing the amplified image data through an artificial neural network. The method may include generating a three-dimensional (3D) model by performing boundary recognition post-processing on the data passing through the artificial neural network to match a two-dimensional (2D) image with the 3D model.

Abstract: A method of controlling a three-dimensional (3D) bioprinter includes a nozzle end aligning operation (S100) that includes an operation (a) in which a nozzle end alignment sensor is installed at a predetermined position on a bed in a printing chamber and a sensing point of the nozzle end alignment sensor is positioned at an origin position of the bed, an operation (b) in which the bed is moved toward one side in an X-axis direction and the sensing point of the nozzle end alignment sensor is positioned under a nozzle of a first print module, an operation (c) in which the first print module is moved downward and a Z value of a nozzle end of the first print module is measured, an operation (d) in which the first print module is positioned at an original position and the bed is moved toward the other side in the X-axis direction to position the sensing point of the nozzle end alignment sensor under a syringe, which is disposed at a printing position, of a second print module, an operation (e) in which the second p

Abstract: A three-dimensional (3D) bioprinter includes: a case, a printing chamber surrounded by wall surfaces, a moving unit including a horizontal moving unit installed in a space under a bottom surface of the printing chamber and a vertical moving unit installed outside a side surface of the printing chamber, a bed disposed above a bottom surface opening of the bottom surface of the printing chamber, a first bellows which covers a space between the bed and an inner circumferential surface of the bottom surface opening, a first print module provided in the printing chamber and installed to be vertically movable by the vertical moving unit in a Z-axis direction, a second print module provided at one side of the first print module in the printing chamber and installed to be vertically movable by the vertical moving unit in the Z-axis direction, and a controller.

Abstract: A polythiol composition according to exemplary embodiments includes: a polythiol-based compound; and a benzyl halide-based reaction regulator in an amount of 10 ppm to 2,000 ppm based on a weight of the polythiol-based compound. The reaction rate of the polythiol-based compound and an isocyanate-based compound may be controlled through the reaction regulator to inhibit a generation of stria phenomenon.

Abstract: The present disclosure relates to a method for feeding back reliable downlink channel state information from a receiver to a transmitter in a multi-user massive MIMO system based on a reconfigurable intelligent surface, and more particularly, to a method for the receiver to transform acquired downlink channel state information into downlink channel state information in an angle domain and compress the downlink channel state information through a compressed-sensing scheme, and then feed the compressed result back to the transmitter, and for the transmitter to acquire the reliable downlink channel state information through a recovery algorithm. According to the present disclosure, the downlink channel state information is compressed according to a compression and recovery algorithm in an mmWave environment, and only a codeword index suitable for the compressed result is fed back to the transmitter to obtain the effect of reduction in feedback overhead in the entire communication system.

Abstract: The present invention method for manufacturing a tissue regeneration patch includes: A) preparing a micronized adipose tissue extract; B) injecting the micronized adipose tissue extract into a mold of a predetermined shape; C) cooling the mold into which the adipose tissue extract is injected at a temperature between ?25° C. and ?10° C.; and D) removing the mold to obtain a tissue regeneration patch.

Abstract: A polythiol composition according to exemplary embodiments includes a first polythiol compound which provides a maximum peak in a high performance liquid chromatography (HPLC) analysis graph obtained at a wavelength of 230 nm, and a second polythiol compound having a molecular weight greater than that of the first polythiol compound and represented by C9H20S6. A ratio of a peak area of the second polythiol compound to a peak area of the first polythiol compound, which are measured through the HPLC analysis graph at the wavelength of 230 nm, is 0.05 to 5.0%.

Abstract: A xylylene diisocyanate composition according to exemplary embodiments includes xylylene diisocyanate (XDI) and chloromethylbenzyl isocyanate (CBI), and may satisfy a predetermined relationship between an acidity and a content of CBI. Thereby, an optical lens having a high transmittance and improved optical uniformity can be manufactured by controlling a polymerization reaction rate.

Abstract: A polythiol composition according to exemplary embodiments includes a main polythiol compound and a sub-compound having a molecular weight higher than that of the main polythiol compound. A peak area (%) at retention times ranging from 34 to 40 minutes in the high performance liquid chromatography (HPLC) analysis graph obtained at a wavelength of 230 nm, which corresponds to the sub-compound, is 2.5% or less. An optical product having improved transmittance and optical properties may be manufactured through fine adjustment of the sub-compound.

Abstract: The present disclosure relates to a method for feeding back reliable downlink channel state information from a receiver to a transmitter in a multi-user massive MIMO system based on a reconfigurable intelligent surface, and more particularly, to a method for the receiver to transform acquired downlink channel state information into downlink channel state information in an angle domain and compress the downlink channel state information through a compressed-sensing scheme, and then feed the compressed result back to the transmitter, and for the transmitter to acquire the reliable downlink channel state information through a recovery algorithm. According to the present disclosure, the downlink channel state information is compressed according to a compression and recovery algorithm in an mmWave environment, and only a codeword index suitable for the compressed result is fed back to the transmitter to obtain the effect of reduction in feedback overhead in the entire communication system.