Abstract: A cathode active material with controlled rheological properties for lithium secondary batteries. In particular, the cathode active material for a lithium secondary battery includes: a core part comprising a lithium metal oxide; and a coating layer covering at least a portion of a surface of the core part and comprising an inorganic compound.

Abstract: A horn antenna for a millimeter wave comprises: a horn radiator including a radiation part having an opening formed therein to radiate a feed signal, and a multi-layer PCB coupling part coupled to lower and side portions of the radiation part to provide a feed signal; and a multi-layer PCB coupled to a lower portion of the multi-layer PCB coupling part to provide a feed signal, wherein a slot and a groove connected to the slot and extending in a direction parallel to the multi-layer PCB are formed in the multi-layer PCB coupling part, wherein a feed line vertically overlapping the slot and the groove is formed on a first layer substrate, which is the uppermost layer of the multi-layer PCB, wherein the opening extends in a direction parallel to the multi-layer PCB, and wherein a ‘¬’-shaped waveguide extending from the slot is formed in the horn radiator.

Abstract: An ion beam etching apparatus comprising a plasma chamber, a plasma source disposed on top of the plasma chamber and configured to generate plasma, a process chamber defining a treating area where a substrate is treated, a grid structure disposed between the process chamber and the plasma chamber, wherein the grid structure receives the plasma, and supplies ions or radicals toward the substrate, a discharge line connected to the grid structure, and a first pumping system connected to the discharge line, wherein particles or polymers within the grid structure are discharged through the discharge line.

Abstract: The present disclosure relates to a novel salt of a 1-sulfonyl pyrrole derivative, and to a novel salt having excellent solubility in vivo, stability, bioavailability, and the like, a preparation method thereof, and a pharmaceutical composition comprising the same.

Abstract: An embodiment regenerated cathode active material includes a first core region including a cathode active material in a layered crystal structure and a second core region enveloping a portion of the first core region, wherein the regenerated cathode active material has a first mole fraction of particles in the layered crystal structure of 0.96 to 1, has a second mole fraction of particles in a rock salt crystal structure of 0 to 0.02, and has a third mole fraction of particles in a spinel crystal structure of 0 to 0.02 based on the total cathode active material.

Abstract: The present invention relates to an optimal medium for growing a cell line auxotrophic for tetrahydrofolate (THF) and producing a desired material in the cell with high efficiency. In particular, the present invention provides a method for enhancing cell growth by adding tetrahydrofolate (THF), or a precursor or derivative thereof into a chemical composition cell medium.

Abstract: The present invention relates to a cell culture medium using mammalian cells for producing a target material at high efficiency in the mammalian cells, a cell culturing method using same, and a method of producing the target material and, more particularly, to a cell culture medium including Zn ions at a concentration of 30?M or more in a culture, a salt thereof, or a chelate compound, a cell culturing method using same, and a method of producing a target material. According to the present invention, a cell culture medium for producing recombinant protein by using mammalian cells can be provided, which can achieve excellent effects in increasing antibody production, without showing any cell growth inhibiting effects.

Abstract: The present invention relates to a cell culture medium using mammalian cells for producing a target material at high efficiency in the mammalian cells, a cell culturing method using same, and a method of producing the target material and, more particularly, to a cell culture medium including Zn ions at a concentration of 30 ?M or more in a culture, a salt thereof, or a chelate compound, a cell culturing method using same, and a method of producing a target material. According to the present invention, a cell culture medium for producing recombinant protein by using mammalian cells can be provided, which can achieve excellent effects in increasing antibody production, without showing any cell growth inhibiting effects.

Abstract: The present invention relates to an optimal medium for growing a cell line auxotrophic for tetrahydrofolate (THF) and producing a desired material in the cell with high efficiency, in particular, the present invention provides a method for enhancing cell growth by adding tetrahydrofolate (THF), or a precursor or derivative thereof into a chemical composition cell medium.