Abstract: The present invention relates to a novel compound and a composition for preventing or treating neuroinflammatory brain diseases, the composition comprising same as an active ingredient and, more specifically, to a pharmaceutical composition for preventing or treating neuroinflammatory brain diseases and a food composition for preventing or ameliorating neuroinflammatory brain diseases, the compositions comprising a compound represented by Chemical Formula 1 as an active ingredient. The novel compound of the present invention can be effectively used to provide a therapeutic agent for preventing or treating neuroinflammatory brain diseases, a food for ameliorating neuroinflammatory brain diseases, or a functional food for enhancing a cognitive function.

Abstract: The present disclosure relates to a compound represented by Chemical Formula 1 and an antibacterial pharmaceutical composition, an antibacterial food composition, an antibacterial cosmetic composition or an antibacterial feed composition comprising the compound as an active ingredient, and has excellent inhibitory activity against Mycoplasma, and thus may be usefully used to prevent or treat infectious diseases caused by Mycoplasma.

Abstract: The present invention provides a novel diphenazine compound or an enantiomer or pharmaceutically acceptable salt thereof. A novel diphenazine compound or an enantiomer or pharmaceutically acceptable salt thereof according to the present invention has an excellent prophylactic or therapeutic effect against the above-mentioned types of cancer by exhibiting cytotoxicity against human cancer cell lines and inhibiting the growth of cancer cells, and has an excellent prophylactic or therapeutic effect against the above-mentioned types of neuroinflammatory diseases by exhibiting the neuroinflammation inhibitory activity of microglia in LPS-induced inflammation experiments.

Abstract: The present invention relates to a novel xanthone compound, an optical isomer thereof or a pharmaceutically acceptable salt thereof that exhibits cytotoxicity against cancer cell lines and inhibits cancer cell growth, thereby exhibiting excellent preventive or therapeutic effects on various cancer cells.

Abstract: An acoustic resonator and a method of manufacturing the same are provided. The acoustic resonator includes a resonating part including a first electrode, a second electrode, and a piezoelectric layer; and a plurality of seed layers disposed on one side of the resonating part.

Abstract: The present invention relates to new compounds derived from marine actinomycetes Streptomyces, and the new compound according to the present invention has an inhibitory effect of NO production on BV-2 microglia stimulated with LPS, and thus can be utilized for the prevention and treatment of neuroinflammatory diseases.

Abstract: A bulk-acoustic wave resonator includes a resonator including a central portion in which a first electrode, a piezoelectric layer, and a second electrode are sequentially stacked on a substrate, and an extension portion disposed along a periphery of the central portion; and an insertion layer disposed between the piezoelectric layer and the substrate in the extension portion to raise the piezoelectric layer. The insertion layer includes a first insertion layer having a first inclined surface formed along a side surface facing the central portion and a second inclined surface disposed between the first insertion layer and the piezoelectric layer and having a second inclined surface spaced apart from the first inclined surface with respect to a surface direction of the first electrode. The first insertion layer is thinner than the second insertion layer.

Abstract: A bulk-acoustic wave resonator comprises a substrate, a resonant portion comprising a first electrode, a piezoelectric layer, and a second electrode sequentially stacked on the substrate, and further comprising a center portion and an extension portion that is disposed along a periphery of the center portion, and an insertion layer that is disposed in the extension portion between the first electrode and the piezoelectric layer, and the insertion layer is formed of an aluminum alloy containing scandium (Sc).

Abstract: A bulk acoustic wave resonator includes a substrate; a central portion including a first portion of a first electrode, a first portion of a piezoelectric layer, and a first portion of a second electrode laminated in order on the substrate; and a reflective region disposed laterally of the central portion and including a second portion of the first electrode, an insertion layer, a second portion of the piezoelectric layer, and a second portion of the second electrode. A side surface of the insertion layer adjacent to the central portion has an inclined surface, the first portion of the second electrode and the second portion of the second electrode are coplanar, and an end of the second electrode overlaps the inclined surface of the insertion layer in the reflective region.

Abstract: A bulk-acoustic wave resonator comprises a substrate, a resonant portion comprising a first electrode, a piezoelectric layer, and a second electrode sequentially stacked on the substrate, and further comprising a center portion and an extension portion that is disposed along a periphery of the center portion, and an insertion layer that is disposed in the extension portion between the first electrode and the piezoelectric layer, and the insertion layer is formed of an aluminum alloy containing scandium (Sc).

Abstract: A vehicle passenger accident prevention system includes a vehicle operation status measurement unit that measures operation states of a vehicle and outputs corresponding signals, a driving unit to drive the vehicle, a braking unit to brake the vehicle, a FCA system that controls the operation of the driving unit and the braking unit, and a controller that detects the seated state of a passenger in the vehicle or a wearing state of a seat belt according to the output signal of the vehicle operation status measurement unit. In particular, the controller controls the operation of the FCA system according to a predetermined control mode in advance when a standing passenger in the vehicle is detected or an unbuckled seat belt is detected.

Abstract: A bulk acoustic wave resonator is provided. The bulk acoustic wave resonator includes a board; a resonant portion including a first electrode, a piezoelectric layer, and a second electrode, and disposed on the board, and a temperature compensation layer disposed on the resonant portion, wherein the temperature compensation layer includes a temperature compensation portion formed of a dielectric and a loss compensation portion formed of a material different from a material of the temperature compensation portion, and wherein each of the temperature compensation portion and the loss compensation portion includes a plurality of linear patterns, and the linear patterns of the temperature compensation portion and the linear patterns of the loss compensation portion are alternately disposed.

Abstract: A bulk-acoustic wave resonator includes a substrate, a first electrode disposed on the substrate, a piezoelectric layer, of which at least a portion is disposed on the first electrode, a second electrode disposed on the piezoelectric layer, and a passivation layer disposed to cover the first electrode and the second electrode. Either one or both of the first electrode and the second electrode includes an aluminum alloy layer. Either one or both of the piezoelectric layer and the passivation layer has aluminum nitride, or aluminum nitride added with a doping material, having a ratio of an out-of-plane lattice constant “c” to an in-plane lattice constant “a” (c/a) of less than 1.58.

Abstract: A bulk-acoustic wave resonator includes: a substrate; a seed layer disposed on the substrate, and having a hexagonal crystal structure; a bottom electrode disposed on the seed layer; a piezoelectric layer at least partially disposed on the bottom electrode; and a top electrode disposed on the piezoelectric layer, wherein either one or both of the bottom electrode and the top electrode includes a scandium (Sc)-containing aluminum alloy layer.

Abstract: An acoustic resonator filter is provided. The acoustic resonator filter includes a rear filter electrically connected between a front port and a rear port, through which a radio frequency (RF) signal passes, the rear filter including at least one film bulk acoustic resonator (FBAR); and a front filter electrically connected between the front port and the rear filter and including at least one solidly mounted resonator (SMR).

Abstract: A film bulk acoustic resonator includes: a first electrode disposed on a substrate; a piezoelectric body disposed on the first electrode and including AlN to which a dopant is added; and a second electrode disposed on the piezoelectric body and facing the first electrode such that the piezoelectric body is interposed between the second electrode and the first electrode, wherein the dopant includes either one of 0.1 to 24 at % of Ta and 0.1 to 23 at % of Nb.

Abstract: An acoustic wave resonator package is provided. The acoustic wave resonator package includes an acoustic wave resonator including an acoustic wave generator on a first surface of a substrate; a cover disposed to face the first surface of the substrate; a bonding member disposed between the substrate and the cover, and configured to bond a bonding surface of the acoustic wave generator and the cover to each other, wherein the bonding member includes glass frit, and the bonding surface of the acoustic wave resonator which is bonded to the bonding member may be formed of a dielectric material.

Abstract: A bulk-acoustic wave resonator includes a substrate, a first electrode disposed on the substrate, a piezoelectric layer covering at least a portion of the first electrode, and a second electrode covering at least a portion of the piezoelectric layer. When an active region, in which the first electrode and the second electrode are disposed to overlap each other, is viewed from above, among four sides of a rectangle with which at least three vertices of a polygon formed by the active region are in contact, a longest side is defined as a side B and a side connected to side B is defined as a side A, and an aspect ratio (side B/side A) is 1.3 to 3.

Abstract: A bulk acoustic wave resonator is provided. The resonator includes a substrate; a resonant portion including a first electrode, a piezoelectric layer, and a second electrode sequentially stacked on the substrate; and a temperature compensation layer disposed at least one of above and below the piezoelectric layer, wherein a material of the temperature compensation layer has a coefficient of thermal expansion of which a sign is opposite to a sign of a coefficient of thermal expansion of a material of the piezoelectric layer, and wherein a relation of a thickness of the temperature compensation layer and a thickness of the piezoelectric layer satisfies the following equation: 0.25<Thickness of Temperature Compensation Layer/Thickness of Piezoelectric Layer<0.33.

Abstract: A bulk-acoustic wave filter device includes: a substrate; a resonance portion in which a cavity is disposed between the substrate and the resonance portion; and a cap configured to form an internal space together with the substrate, wherein filling gas including at least one of hydrogen gas and helium gas is filled in at least one of the cavity and the internal space formed by the substrate and the cap.