Abstract: A refrigerator includes a main body; a first storage chamber installed in the upper region of the main body and having an opened upper surface; a second storage chamber installed below the first storage chamber in the main body and having an opened front surface; a first door to open and close the upper surface of the first storage chamber; a second door rotatably connected to the front surface of the main body to open and close the front surface of the second storage chamber, and at least one tray installed in the second storage chamber so that the tray can be drawn forward out of the second storage chamber when goods to be stored are mounted on the tray.

Abstract: A 1,2,4-triazole derivative of formula 1 or a non-toxic salt thereof, a preparation method thereof, and a pharmaceutical composition containing the derivative or the salt as an active ingredient are provided: wherein: R1 represents naphthyl, indolyl, benzofuranyl, benzothienyl, benzimidazolyl, benzothiazolyl, benzotriazolyl, benzooxazolyl, quinolinyl, or isoquinolinyl; wherein, R1 is optionally substituted at a substitutable position with one or more radicals independently selected from halogen, hydroxy, nitro, C1-C6 alkyl, C1-C6 haloalkyl, C1-C6 alkoxy, C1-C6 haloalkoxy, cyano, amino, monoalkylamino, and dialkylamino; R2 represents methyl or amino; and A, B, E, and D each independently represent carbon or nitrogen.

Abstract: In one embodiment, a switching mode power supply (SMPS) include: a power supply for supplying power to a secondary coil of a transformer according to an operation of a main switch, the main switch being coupled to a primary coil of the transformer; a feedback circuit for generating a feedback voltage corresponding to an output voltage; a control module for stopping the main switch when the feedback voltage is lower than a reference voltage in a standby operation mode; an integrated circuit (IC) power unit for generating a constant voltage, the IC power supply being coupled to the secondary coil of the transformer; and a current generator for using the constant voltage to generate a plurality of constant currents for operating a plurality of ICs, and generating a constant current from among the constant currents when the main switch performs no switching on/off operation.

Abstract: A parent or master substrate for a semiconductor package is provided, which can provide a plurality of unit substrates by cutting into pieces for producing a semiconductor device. The parent substrate includes an insulation layer, conductor patterns formed on first and second surfaces of the insulation layer, and PSR (photo solder resist) layers respectively formed on the first and second surfaces of the insulation layers and covering the conductor patterns. The parent substrate includes an upper part and a lower part divided by a reference surface which passes through the center of the insulation layer. When an equivalent thermal expansion coefficient ?upper of the upper part is defined by the Equation of ? upper = ? i = 1 n ? ? i × E i × v i ? i = 1 n ? E i × v i , where ?i is respective thermal expansion coefficients of, Ei is respective elastic moduli of, and vi is respective volume ratios of first through nth components constituting the upper part (e.g.

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: Disclosed is a session handoff method of an access terminal (AT) in a high-rate packet data (HRPD) mobile communication system. The session handoff method comprises performing a close procedure of a session in negotiation upon receiving a close request for a session negotiation from the AT performing session handoff; allocating a new unicast access terminal identifier (UATI) to the AT upon receiving a request for allocation of a new UATI from the AT after the session close procedure; and acquiring prior session information from a source session controller using an old UATI included in received prior session information upon receiving configuration information including the prior session information from the AT after allocating a new UATI to the AT.

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 method of using pure oxygen in microbial fermentation processes and wastewater treatment processes, in which the pure oxygen is produced by a pressure swing adsorption (PSA) process from a gas mixture of air and unused oxygen-containing recycled off-gas from microbial processes which uses oxygen-containing gas in a liquid or gas state. When pure oxygen with a purity of more than 90% is used in microbial processes, microbial productivity can be about 5 times as increased as it is that in the conventional method using air with an oxygen content of 21%, and the volume of an active sludge tank in wastewater treatment processes can be reduced to at most ? of the volume as compared to the conventional method. Also, the off-gas from such pure oxygen processes has a high oxygen content of about 70-80%.

Abstract: Provided is a method of manufacturing a printed circuit board. In an embodiment, the method includes forming a prepreg layer via a reel method, forming a conductive film for forming a circuit pattern on at least one surface of the prepreg layer; and forming a predetermined circuit pattern on the conductive film. In an embodiment, the prepreg layer has a thickness of at most about 0.15 mm and contains a fiber material and a resin material. In an embodiment, the content of the resin material in the prepreg layer is about 70% or less by volume. In an embodiment, the prepreg layer is composed of at least one prepreg layer.

Abstract: A plasma display device that uses a plasma display panel to enable use as an image device such as a television. The plasma display device includes a plasma display panel, a chassis base including a circuit assembly for driving the plasma display panel and regulating members mounted in a vicinity of the circuit assembly on a surface of the chassis base to which the circuit assembly is provided, said regulating members regulating the flow of air in the area of the chassis base.

Abstract: A 1,2,4-Triazole derivative of formula 1 or a non-toxic salt thereof, a preparation method thereof, and a pharmaceutical composition containing the derivative or the salt as an active ingredient are provided.

Abstract: A parent or master substrate for a semiconductor package is provided, which can provide a plurality of unit substrates by cutting into pieces for producing a semiconductor device. The parent substrate includes an insulation layer, conductor patterns formed on first and second surfaces of the insulation layer, and PSR (photo solder resist) layers respectively formed on the first and second surfaces of the insulation layers and covering the conductor patterns. The parent substrate includes an upper part and a lower part divided by a reference surface which passes through the center of the insulation layer. When an equivalent thermal expansion coefficient ?upper of the upper part is defined by the Equation of ? upper = ? i = 1 n ? ? i × E i × v i ? i = 1 n ? E i × v i , where ?i is respective thermal expansion coefficients of, Ei is respective elastic moduli of, and vi is respective volume ratios of first through nth components constituting the upper part (e.g.

Abstract: A screen composite provided on a face plate of a flat panel display device, said screen composite containing an aluminum layer and a metal layer formed on said aluminum layer for substantially reducing a halation phenomenon.

Abstract: Disclosed is an SMPS for preventing abnormal overcurrents. A circuit having a short circuit delay is used to generate a control signal for turning off a main switch (i.e., a switching MOS transistor) when the overcurrent occurs, that is, in an initial startup or when a protection circuit is operated. Accordingly, a drain-source voltage of the main switch is reduced when the main switch is turned off, and a switching MOS transistor with a low withstanding voltage can be used.

Abstract: There are provided a printed circuit board having a structure for relieving a stress concentration on an outer most lead of leads, due to a difference in thermal expansion coefficients between the semiconductor device and the printed circuit board when the semiconductor device is mounted on the printed circuit board. The printed circuit board includes an inner lead portion to be connected to the semiconductor device. The inner lead portion includes a plurality of leads, arranged in parallel with a same pitch in a predetermined area, and additional leads located near both ends of the predetermined area in which the plurality of leads are arranged in parallel, respectively, wherein each of the plurality of leads has a pitch smaller than 30 ?m and a width of the additional lead is wider than 20 ?m. There are also provided a semiconductor chip package equipped with the printed circuit board according to the present invention.

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: In one embodiment, a switching mode power supply (SMPS) may comprise: a power supply for supplying power to a secondary coil of a transformer according to an operation of a main switch, the main switch being coupled to a primary coil of the transformer; a feedback circuit for generating a feedback voltage corresponding to an output voltage; a control module for stopping the main switch when the feedback voltage is lower than a reference voltage in a standby operation mode; an integrated circuit (IC) power unit for generating a constant voltage, the IC power supply being coupled to the secondary coil of the transformer; and a current generator for using the constant voltage to generate a plurality of constant currents for operating a plurality of ICs, and generating a constant current from among the constant currents when the main switch performs no switching on/off operation.

Abstract: A switching mode power supply (SMPS) is presented to compensate for variations of maximum output power caused by variations of input power. The output power varies according to variations of input power because of a propagation delay of the SMPS. To compensate for the propagation delay, a reference voltage for turning off a switching MOS transistor is differently established depending on the input voltage. The variation of maximum output power according to the input voltage is prevented by differentiating the turned-off time of the reference voltage for turning off a main switch, such as a switching MOS transistor according to the input voltage.

Abstract: The present invention relates to an isothiazole derivative of the following formula 1 or nontoxic salt thereof: wherein, R1 is hydrogen, alkoxy group or halogen group; R2 is methyl or amino group. According to the present invention, isothiazole derivative or nontoxic salt thereof having antipyretic, analgesic and antiphlogistic activity and an improved side effect; process for the preparation thereof; and pharmaceutical composition including the same can be provided.

Abstract: A liquid crystal display device includes first and second substrates, a black matrix on the second substrate, the black matrix including a plurality of open portions corresponding to pixel regions and a plurality of holes disposed adjacent to the plurality of open portions, color filter layers on the black matrix, and a plurality of patterned spacers corresponding to each of the plurality of holes between the first and the second substrates.