Abstract: The present invention relates to a novel 4′-methanesulfonyl-biphenyl derivative having a structure of formula 1 and its pharmaceutically acceptable salts as a highly selective cyclooxygenase-2 inhibitor. <Formula 1> Wherein, R1 and R2 are defined in this specification respectively.

Abstract: The present invention relates to a novel 3,4-dihydro-1H-naphthalene derivative having a structure of formula 1 or formula 2, its pharmaceutically acceptable salts and their geometric isomers as a highly selective cyclooxygenase-2 inhibitor.

Abstract: The present invention relates to a novel 1H-indole derivative having a structure of formula 1 and its pharmaceutically acceptable salts as a highly selective cyclooxygenase-2 inhibitor.

Abstract: The present invention relates to a novel 4′-methanesulfonyl-biphenyl derivative having a structure of formula 1 and its pharmaceutically acceptable salts as a highly selective cyclooxygenase-2 inhibitor.

Abstract: This invention relates to a polyurethaneurea elastic fiber of which the weatherability is excellent and the preparing method thereof. The invention prepares the polyurethaneurea elastic fiber by adding the formamidine type ultraviolet adsorber of the following formula I to the spinning dope and the strength maintenance rate of the polyurethaneurea elastic fiber is over 90% after being leaved for 24 hours at the Fade-O-Meter in which the sunshine carbon arc is installed. Wherein, R and R represent an each alkyl group of 1 to 5 carbon atoms.

Abstract: A video signal coding method is provided which finds proper decision curves according to characteristics of input frames and encodes the optimal macroblock by using the decision curves instead of a fixed motion/no-motion compensation curve and intra/inter coding curve. The optimal mode is selected for each macroblock of input frame and it is determined through a step of judging whether the input frame is intra mode using a given function, a step of judging whether the input frame is inter mode when it is not intra mode using a given function, a step of controlling quantizer using a predetermined critical value when it is not inter mode, and step of performing skip when the quantizer controlling step is not carried out.

Abstract: A video signal coding method is provided which finds proper decision curves according to characteristics of input frames and encodes the optimal macroblock by using the decision curves instead of a fixed motion/no-motion compensation curve and intra/inter coding curve. The optimal mode is selected for each macroblock of input frame and it is determined through a step of judging whether the input frame is intra mode using a given function, a step of judging whether the input frame is inter mode when it is not intra mode using a given function, a step of controlling quantizer using a predetermined critical value when it is not inter mode, and step of performing skip when the quantizer controlling step is not carried out.

Abstract: A method for providing the information inquired by a mobile terminal subscriber via an information service center having a voice recognition function. When a call is set up between the information service center and a mobile terminal, the information service center transmits an outgoing message to the mobile terminal. In response, the mobile terminal transmits a voice response in response to the outgoing message from the information service center. The information service center recognizes the user's voice and searches a specific information corresponding to the recognized voice. The information service center transmits the searched information in voice signal to the mobile terminal. The mobile terminal outputs the searched information provided from the information service center, and transmits a request for character information of the searched information to the information service center as occasion demands.

Abstract: A multi-layered circuit substrate and a manufacturing method thereof comprising the steps of coating the upper surface of a substrate with a photosensitive insulating layer; exposing and developing the photosensitive insulating layer to form a photosensitive insulating layer of predetermined pattern and pattern spaces; forming a conductive layer by printing a conductive ink in the pattern spaces; and forming a plurality of layers by performing the previous steps, each layer comprising a photosensitive insulating layer of predetermined pattern and pattern spaces and a conductive layer formed in the pattern spaces.

Abstract: An IC card and a method of fabricating the same are provided in which the IC card substrate is formed of a blackened metal core plate to improve thermal, electrical and mechanical stability of the IC card.

Abstract: An ice cube tray assembly for refrigerators, which prevents an undesirable separation of the ice cube tray from the tray case when the tray is rotated, is disclosed. The tray assembly of this invention has a tray case, which is slidably installed in a base of a freezer compartment of a refrigerator and has a bearing with a snap lip. An ice cube tray is rotatably mounted to the case by a hinge pin snapping into the bearing. A stopper is provided on the bearing for preventing an undesirable separation of the hinge pin from the bearing when the tray is rotated. The tray assembly is thus free from any locking device used for preventing separation of the tray so that the assembly has a simple construction, improves work efficiency while assembling the tray assembly, and improves the operational reliability of the refrigerators.

Abstract: A shelf structure for use in a freezer compartment of a refrigerator includes a horizontal shelf and a base formed integrally of one piece with the shelf. The base extends downwardly from the shelf and includes upper and lower pairs of guide rails. A case is slidably supported on the upper guide rails and carries ice cube trays which are rotatable relative to the case for ejecting ice cubes. An ice cube storage bin is slidably mounted on the lower guide rails beneath the trays for receiving the ejected ice cubes.

Abstract: A shelf construction in a refrigerator includes a pair of guide rails provided on opposite side walls of a refrigerator compartment. A shelf slides forwardly and rearwardly along the guide rails. Two front stop beads are provided at respective front portions of the guide rails, and two rear stop beads are provided at respective rear portions of the guide rails. Stoppers project from the shelf in an area bordered by the front and rear stop beads. The stoppers come into contact with the front beads as the shelf slides forwardly, thereby limiting the forward movement of the shelf. The stoppers also come into contact with the rear beads as the shelf slides rearwardly, thereby limiting the rearward movement of the shelf.

Abstract: A process for the preparation of aromatic polyamide pulp having both excellent physical properties and a high degree of polymerization by continuous polymerization and orientation by using of mixed solutions. The solutions are prepared by reacting diamine with aromatic diacid dichloride in an amide and/or urea-based polymerization solvent containing inorganic salts, or a mixture of inorganic salts and a Lewis acid compound. The process can be practiced by polymerization-orientation apparatus located on the continuous transferable polymerization-orientation means comprised of a belt and one or more stirring bars.

Abstract: The present invention relates to an aromatic polyamide pulp and its preparing process which has both excellent physical properties and high degree of polymerization wherein aromatic diamine is reacted with aromatic diacid chloride in amides and/or urea-based polymerization solvent containing inorganic salts and/or a little of Lewis acid compound. The present invention can easily provide the pulp of high polymerization degree and high orientation by stirrer in the continuous transferable polymerization-orientation-gelation apparatus within a short time without use of a tertiary amine affecting human body and without regard to isotropic or anisotropic, and continuous or uncontinuous ejection.

Abstract: A shelf structure for a freezer compartment of a refrigerator includes a horizontal shelf and a base removably supported by an underside of the shelf. The shelf includes downward projections received in holes formed in a top wall of the base. Each projection incudes a narrow part and a wide part disposed at a lower end of the narrow part. The base rests upon the wide parts. Each hole includes an insert portion and a locking portion. The projections are passed vertically through the insert portion and are then moved horizontally into the locking portion. A portion of an edge of the hole is elastic to enable the narrow part to enter the locking portion and then to elastically retain the narrow part therein.

Abstract: A multi-layered circuit substrate and a manufacturing method thereof comprising the steps of coating the upper surface of a substrate with a photosensitive insulating layer; exposing and developing the photosensitive insulating layer to form a photosensitive insulating layer of predetermined pattern and pattern spaces; forming a conductive layer by printing a conductive ink in the pattern spaces; and forming a plurality of layers by performing the previous steps, each layer comprising a photosensitive insulating layer of predetermined pattern and pattern spaces and a conductive layer formed in the pattern spaces.