Abstract: An amplifier device includes an amplifier including cascade-connected power amplifiers in a plurality of stages and a bias circuit configured to supply bias currents to the amplifier. A bias current supplied to a power amplifier in the first stage of the power amplifiers in the plurality of stages exhibits a positive temperature characteristic. A bias current supplied to a power amplifier in the final stage exhibits a negative temperature characteristic.

Abstract: A fuel cell separator material includes: a composite material containing electrically conductive particles and a binder resin; and soluble resin layers located on both sides of the composite material.

Abstract: There is provided a discharge lamp of an embodiment includes a burner having a light emitting part, and a disk-shaped flange which is capable of holding the burner so that the light emitting part is positioned at a front end side of the flange. The flange includes a resin part formed at an edge of the flange, and a metal part formed to be embedded in the resin part.

Abstract: A storage apparatus capable of achieving both an improvement in efficiency of data transfer processing and an improvement in availability and a method of controlling the storage apparatus are provided.

Abstract: A storage apparatus capable of achieving both an improvement in efficiency of data transfer processing and an improvement in availability and a method of controlling the storage apparatus are provided.

Abstract: To provide a storage apparatus and its control method capable of preventing degradation of sequential performance by making the page size of pages allocated to a duplicate of a logical volume an appropriate size. A storage apparatus including a controller connected to a host system and a storage device connected to the controller, wherein the controller provides the host system with a logical volume, a duplicated volume which is a duplicate of the logical volume, and a snapshot volume for storing data to be saved by a snapshot; and a page(s) is allocated in a stripe unit of data size that can be read in response to one read command to the storage device when allocating the page(s) to the duplicated volume.

Abstract: There is provided a discharge lamp of an embodiment includes a burner having a light emitting part, and a disk-shaped flange which is capable of holding the burner so that the light emitting part is positioned at a front end side of the flange. The flange includes a resin part formed at an edge of the flange, and a metal part formed to be embedded in the resin part.

Abstract: A mercury-free vehicle discharge lamp is described as including a discharge space with electrodes, wherein a spherical length b, which is a length in a tube axial direction of the light emitting part is 7.5 mm to 8.5 mm and a thickness volume V of the light emitting part is 50 mm3 to 100 mm3, and wherein the following formula is satisfied: ?20?(a?35)×5.5+(x?13.5)×10 +(1.85?t)×100+(2.5?d)×100?20, a: power W supplied in a stable lighting time, x: pressure [atm] of rare gas sealed in the discharge space ranging 10˜17 atm, t: thickness [mm] of a part where a wall with maximum thickness and ranging 1.30˜1.85 mm, and d: inner diameter [mm] of a part where the wall with maximum thickness.

Abstract: To provide a storage apparatus and its control method capable of preventing degradation of sequential performance by making the page size of pages allocated to a duplicate of a logical volume an appropriate size. A storage apparatus including a controller connected to a host system and a storage device connected to the controller, wherein the controller provides the host system with a logical volume, a duplicated volume which is a duplicate of the logical volume, and a snapshot volume for storing data to be saved by a snapshot; and a page(s) is allocated in a stripe unit of data size that can be read in response to one read command to the storage device when allocating the page(s) to the duplicated volume.

Abstract: A storage system having a primary storage apparatus for storing data from a host computer in a primary logical volume, and a secondary storage apparatus connected to the primary storage apparatus, for providing a secondary logical volume for storing a copy of the data, the storage system comprising: a search unit for checking whether or not data exists in each primary slot area formed by partitioning a storage area in the primary logical volume into predetermined storage areas; a transmission unit for sending, if no data is held in the primary slot area, a notice indicating no data stored to the secondary storage apparatus; and a data write unit for writing, when the notice is received from the primary storage apparatus, zero data in the secondary slot area.

Abstract: An automotive discharge lamp, having an inner tube including a light emitting unit having a first space therein and seal portions formed on the light emitting unit, a discharge medium containing a first gas enclosed in the first space, a metal foil sealed in the seal portions, electrodes with one end connected to the metal foil and other end extended into the first space, and an outer tube connected to the inner tube to form a second space between the outer tube and the inner tube, wherein the second space has a second gas enclosed therein and the oxygen concentration in the second space is 1.0 volume % or less.

Abstract: A metal halide lamp is comprised of an airtight tube having a discharge section in which a discharge space is formed; a discharge medium which is enclosed in the discharge space, contains metal halide exhibiting a molar ratio of sodium halide to scandium halide of 1.5 or below and 8 atm or higher of xenon but does not substantially contain mercury; and a pair of electrodes with their tip ends arranged to oppose to each other in the discharge space, wherein halogen atoms bonded to metal in the metal halide mostly consist of iodine and bromine atoms, and a ratio of the bromine atoms is in a range of 10 to 50% and the total amount of the metal halide enclosed is 0.02 mg/?l or less.

Abstract: Provided is a mercury-free vehicle discharge lamp that is stably lighted with a power of 18 to 30 W in a steady time. The lamp is defined in a light-emitting portion (11). A discharge medium including a metal halogen compound and a rare gas are sealed into the lamp. The lamp also has a discharge space in which electrodes (32) are disposed and satisfies the following equation. ?40?(a?35)×5.5+(x?13.5)×10+(1.85?t)×100+(2.

Abstract: A storage system having a primary storage apparatus for storing data from a host computer in a primary logical volume, and a secondary storage apparatus connected to the primary storage apparatus, for providing a secondary logical volume for storing a copy of the data, the storage system comprising: a search unit for checking whether or not data exists in each primary slot area formed by partitioning a storage area in the primary logical volume into predetermined storage areas; a transmission unit for sending, if no data is held in the primary slot area, a notice indicating no data stored to the secondary storage apparatus; and a data write unit for writing, when the notice is received from the primary storage apparatus, zero data in the secondary slot area.

Abstract: A storage system having a primary storage apparatus for storing data from a host computer in a primary logical volume, and a secondary storage apparatus connected to the primary storage apparatus, for providing a secondary logical volume for storing a copy of the data, the storage system comprising: a search unit for checking whether or not data exists in each primary slot area formed by partitioning a storage area in the primary logical volume into predetermined storage areas; a transmission unit for sending, if no data is held in the primary slot area, a notice indicating no data stored to the secondary storage apparatus; and a data write unit for writing, when the notice is received from the primary storage apparatus, zero data in the secondary slot area.

Abstract: Disclosed is a metal halide lamp, comprising an airtight tube having a discharge portion with a discharge space therein and a pair of sealing portions formed at both ends of the discharge portion; a discharge medium substantially free from mercury enclosed in the discharge space, the discharge medium including a rare gas and a metal halide, the metal halide including a scandium halide; metal foils sealed in the sealing portions; a pair of electrodes having one ends connected to the metal foils and the other ends arranged to face each other within the discharge space; and coils wound around the electrodes within the sealing portions, wherein the scandium halide has a weight ratio of not less than 30%, and the coils have an outer diameter R of not less than 0.45 mm but not more than 0.60 mm.

Abstract: [Problems] A mercury-free metal halide lamp improved in light beam maintaining rate by limiting an excessive temperature rise at the upper portion of an arc tube at starting, a metal halide lamp lighting device using this and a head light. [Means of Solving Problems] The metal halide lamp MHL comprises a translucent airtight container (1) having a discharge space (1c) inside thereof, the portion thereof facing the center part having a wall-thickness of at least 1.7 mm, a pair of electrodes (1b) sealed in the discharge space so as to face each other across a gap, and discharge medium sealed so as to contain a halide compound as a light emitting metal and rear gas but not to contain mercury (Hg) intrinsically, wherein a lamp voltage ratio V16/V0 satisfies V16/V0?1.

Abstract: Disclosed is an automotive discharge lamp, comprising an inner tube (1) including a light emitting unit (11) having a first space (15) therein and seal portions formed on the light emitting unit (11), a discharge medium containing a first gas enclosed in the first space (15), a metal foil (31) sealed in the seal portions (12), electrodes (32) with one end connected to the metal foil (31) and other end extended into the first space (15), and an outer tube (5) connected to the inner tube (1) to form a second space (51) between the outer tube (5) and the inner tube (1), wherein the second space (51) has a second gas enclosed therein and the second gas contains oxygen in a concentration of 1.0 volume % or less.

Abstract: A metal halide lamp is comprised of an airtight tube (1) having a discharge section (11) in which a discharge space (14) is formed; a discharge medium which is enclosed in the discharge space (14), contains metal halide (2) exhibiting a molar ratio of sodium halide to scandium halide of 1.5 or below and 8 atm or higher of xenon but does not substantially contain mercury; and a pair of electrodes (3a2, 3b2) with their tip ends arranged to oppose to each other in the discharge space (14), wherein halogen atoms bonded to metal in the metal halide (2) mostly consist of iodine and bromine atoms, and a ratio of the bromine atoms is in a range of 10 to 50% and the total amount of the metal halide (2) enclosed is 0.02 mg/?l or less.

Abstract: A storage system having a primary storage apparatus for storing data from a host computer in a primary logical volume, and a secondary storage apparatus connected to the primary storage apparatus, for providing a secondary logical volume for storing a copy of the data, the storage system comprising: a search unit for checking whether or not data exists in each primary slot area formed by partitioning a storage area in the primary logical volume into predetermined storage areas; a transmission unit for sending, if no data is held in the primary slot area, a notice indicating no data stored to the secondary storage apparatus; and a data write unit for writing, when the notice is received from the primary storage apparatus, zero data in the secondary slot area.