Abstract: A safety lens has a protection panel and a dioptric component. The protection panel is transparent, flat and non-dioptric. The dioptric component is formed on the protection panel to provide a dioptric effect for a myopic or presbyopic wearer to allow the wearer to see through the dioptric component clearly. Therefore, the myopic or presbyopic wearer can see a workpiece through the dioptric component to perform detailed operations or through the protection panel to relax eyes when performing normal operations.

Abstract: The present invention relates to a novel diaryl 1,2,4-triazole derivative of the following formula (1) as a highly selective cyclooxygenase-2 inhibitor, wherein R1, R2, R3, R4, R5, W and A is as defined in this specification.

Abstract: The present invention relates to a novel diaryl 1,2,4-triazole derivative of the following formula 1 as a highly selective cyclooxygenase-2 inhibitor: Wherein, R1, R2, R3, R4, R5, W and A is as defined in this specification.

Abstract: A bottom watering-type cultivation device which supplies water from a refillable water vessel (20) provided at a lower portion of a flowerpot (1) to a plant in the flowerpot (1). The bottom watering-type plant cultivation device includes a flowerpot (1) having a bottom part projected upward at a predetermined section thereof to a predetermined height to define a nutrient solution feed space (3) under the bottom part of the flowerpot (1), a refillable water vessel (20) to contain a predetermined amount of water therein to supply the water into the flowerpot, a nutrient solution guide (30) removably installed in the nutrient solution feed space (3) of the flowerpot (1), a water absorbing unit (24) engaging with the nutrient solution guide (30), and a root intercept unit (12) to prevent roots of the plant from infiltrating into the nutrient solution feed space (3).

Abstract: The present invention relates to a novel diaryl 1,2,4-triazole derivative of the following formula 1 as a highly selective cyclooxygenase-2 inhibitor: Wherein, R1, R2, R3, R4, R5, W and A is as defined in this specification.

Abstract: The present invention relates to a novel bipyridinyl derivative having a structure of formula (1) and its pharmaceutically acceptable salts, optical isomer and method for preparing it as a highly selective cyclooxygenase-2 inhibitor, wherein R is defined in this specification.

Abstract: The present invention relates to a novel diaryl 1,2,4-triazole derivative of the following formula (1) as a highly selective cyclooxygenase-2 inhibitor, wherein R1, R2, R3, R4, R5, W and A is as defined in this specification.

Abstract: The present invention relates to a novel bipyridinyl derivative having a structure of formula (1) and its pharmaceutically acceptable salts, optical isomer and method for preparing it as a highly selective cyclooxygenase-2 inhibitor, wherein R is defined in this specification.

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. Wherein R1, R2, X, A and Q 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. Wherein, R1, R2, X, A and Q 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. Wherein, X, Y, and Q are defined in this specification respectively.

Abstract: A welder helmet includes a shield holder. A head set is disposed rearwardly of and is pivoted to left and right ends of the shield holder. A fixed face shield extends downwardly from the shield holder. A movable face shield is disposed frontwardly of the fixed face shield. A coupler unit couples the movable face shield on the shield holder to permit turning of the movable face shield away from the fixed face shield when the welder wishes to check a welded spot.

Abstract: A welder helmet includes a shield holder. A head set is disposed rearwardly of and is pivoted to left and right ends of the shield holder. A fixed face shield extends downwardly from the shield holder. A movable face shield is disposed frontwardly of the fixed face shield. A coupler unit couples the movable face shield on the shield holder to permit turning of the movable face shield away from the fixed face shield when the welder wishes to check a welded spot.

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: An apparatus and a method for retaining moisture on a polishing pad in chemical mechanical polishing during machine idling, i.e. during machine maintenance or repair are described. The apparatus is constructed of a circular disc in a clam-shell configuration having two halves for easy mounting or dismounting from a polishing pad. The circular disc may further include a protruded top portion to accommodate a polishing head when the chemical mechanical polishing apparatus is in a stand-by mode. The circular disc should have a diameter sufficiently large to cover an entire surface area of a polishing pad, while a peripheral edge of the circular disc overlaps a periphery of the polishing pad. The apparatus further includes a moisture retention means mounted on an inner surface of the circular disc for providing a moisturizing environment to the surface of the polishing pad. The moisture retention means can be suitably provided in brushes formed of moisture retaining bristles or in a cellulosic material layer.

Abstract: An eyeglass frame includes a lens member with a pair of lateral wing portions, each of which has a pivot hole and a resilient piece formed between the pivot hole and a rear edge section of the wing portion. The resilient piece has an engaging protrusion. Each of a pair of connectors is formed with a horizontal pivot shaft which extends rotatably through the pivot hole in a respective wing portion. Each connector has a rear end portion formed with a clamping space for clamping the rear edge section of the respective wing portion, and is formed with a series of engaging grooves which are arranged in a direction from an upper end to a lower end of the connector. The engaging protrusion on the resilient piece engages resiliently and removably a selected one of the engaging grooves in a corresponding connector so as to permit adjustment of tilt of the connector relative to the respective wing portion.