Abstract: A selective catalytic reduction system (SCR) that reduces a burden on a battery resulting from energization of a heater and a decrease in time during which an NOx concentration cannot be detected. The SCR system includes: an SCR device; a dosing valve; NOx sensors; an urea solution injection control unit; electric heaters for raising respective temperatures of the NOx sensors to a sensor operating temperature; and an energization permission unit that prohibits energization of the heaters at the time of a start of an engine and permits energization of the heaters when engine revolutions become equal to or exceed a preset energization permission threshold value and such state lasts for a period of time equal to or exceeding a preset stabilization wait time.

Abstract: A urea spray selective catalytic reduction (“SCR”) control system includes an SCR catalyst provided in a discharge pipe of an engine, a dosing valve for injecting urea water at an upstream side of the SCR catalyst, and NOx sensors, wherein the system controls injection of the urea water from the dosing valve. The system includes a plurality of NOx model maps corresponding to an atmospheric pressure condition, an outdoor air temperature, and an engine water temperature, and determines an amount of NOx from each NOx model map on a basis of detection values of an atmospheric pressure detector, an outdoor air temperature detector, and an engine water temperature detector, and controls an amount of injection of the urea water from the dosing valve on a basis of the amount of NOx thus determined.

Abstract: A selective catalytic reduction system (SCR) that reduces a burden on a battery resulting from energization of a heater and a decrease in time during which an NOx concentration cannot be detected. The SCR system includes: an SCR device; a dosing valve; NOx sensors; an urea solution injection control unit; electric heaters for raising respective temperatures of the NOx sensors to a sensor operating temperature; and an energization permission unit that prohibits energization of the heaters at the time of a start of an engine and permits energization of the heaters when engine revolutions become equal to or exceed a preset energization permission threshold value and such state lasts for a period of time equal to or exceeding a preset stabilization wait time.

Abstract: A laminate circuit board package having a thermal heat spreader or heatslug thermally coupled to an electrical component such as an integrated circuit (IC) in order to dissipate heat within the IC by forming a heatpath away from the IC. The heat spreader is preferably formed of high performance thermal materials and thermally coupled to the IC. The heat spreader is configured to provide an enhanced thermal passage that efficiently facilitates the flow of heat away from the chip. The thermal heat spreader is coupled to the IC via one or more holes formed in the laminate board to efficiently disperse heat away from the chip and onto an attached motherboard.

Abstract: A passive mode lock fiber laser including an energy generating means. The energy generating means includes a cavity, the cavity includes a gain medium made of an optical fiber for amplifying the laser energy in the cavity, a reflect means for reflecting the laser energy, a phase fluctuation compensating means for compensating a linear phase fluctuation of the gain medium, and an output means for outputting the laser energy generated in the cavity includes a temperature adjusting mechanism for adjusting a temperature of an optical fiber portion and a piezo element position adjusting mechanism for adjusting a position in the optical axis of the reflect means by using a piezo element.

Abstract: A passively modelocked fiber laser includes a laser diode generating laser energy, a wavelength splitter guiding the laser energy generated at the laser diode to a cavity part, and a gaining medium for amplifying the laser energy in the cavity part. The passively modelocked fiber laser further includes a reflecting means for reflecting the laser energy along an optical axis passing through the gaining medium, an output means for outputting the laser energy generated in the cavity part, and a fiber isolator provided between the laser diode and the wavelength splitter. In the passively modelocked fiber laser, the fiber isolator is composed of an optical fiber having a curved shape and including a core for propagating the laser energy, a clad for coating the core, and an optical absorption film for coating the clad.

Abstract: A passively modelocked fiber laser includes a laser diode generating laser energy, a wavelength splitter guiding the laser energy generated at the laser diode to a cavity part, and a gaining medium for amplifying the laser energy in the cavity part. The passively modelocked fiber laser further includes a reflecting means for reflecting the laser energy along an optical axis passing through the gaining medium, an output means for outputting the laser energy generated in the cavity part, and a fiber isolator provided between the laser diode and the wavelength splitter. In the passively modelocked fiber laser, the fiber isolator is composed of an optical fiber having a curved shape and including a core for propagating the laser energy, a clad for coating the core, and an optical absorption film for coating the clad.

Abstract: A passive mode lock fiber laser including an energy generating means. The energy generating means includes a cavity, the cavity includes a gain medium made of an optical fiber for amplifying the laser energy in the cavity, a reflect means for reflecting the laser energy, a phase fluctuation compensating means for compensating a linear phase fluctuation of the gain medium, and an output means for outputting the laser energy generated in the cavity includes a temperature adjusting mechanism for adjusting a temperature of an optical fiber portion and a piezo element position adjusting mechanism for adjusting a position in the optical axis of the reflect means by using a piezo element.

Abstract: A chip component is manufactured through a step of burning a unburned unit element made of ceramics having prism-shaped parts at its ends, a step of polishing the edges of the burned unit element, and a step of forming a resistor conductor, an electrode conductor and a armor on the polished unit element.

Abstract: An angular velocity sensor includes coupling beams supported afloat by highly flexible support beams so as to be movable relative to a substrate, with the support beams being flexible in the x-axis and a y-axis directions and being symmetrical with respect to the center of the sensor. A first vibrator and a second vibrator are supported by respective coupling beams through spring beams that are highly flexible in the x-direction, with the spring beams being symmetrical with respect to the x-axis passing through the center symmetrical to each other with respect to the y-axis passing through the center. Drive electrodes drive at least one of the first vibrator and the second vibrator to vibrate in the x-direction. First displacement detection electrodes detect a y-directional vibration of the first vibrator and second displacement detection electrodes detect a y-directional vibration of the second vibrator.

Abstract: A chip component is manufactured through a step of burning a unburned unit element made of ceramics having prism-shaped parts at its ends, a step of polishing the edges of the burned unit element, and a step of forming a resistor conductor, an electrode conductor and a armor on the polished unit element.

Abstract: An imaging apparatus are provided with a card-like part 1a, a box-like part 1b united thereto, a connector 14 provided at one end of the card-like part 1a and having a terminal for sending out signal to the outside, a camera unit 11 detachably accommodated in the box-like unit 1b, an imaging circuit unit 15 for digitalizing image output from the camera unit 11, signal processing means including a digital processing circuit unit 16 for digitally processing the output signal of the unit 15 and a memory circuit unit 17 capable of storing the processed digital signal, an operating unit 12 provided in the box-like part 1b and operable in connection with imaging, and trigger switches 12b and 11c provided for imaging on the operating unit 12 and camera unit 11, respectively.

Abstract: A mixer for a gas fueled engine uses a venturi through which a fuel nozzle opens into an air inlet path at a narrowest portion of the venturi in a substantially parallel orientation relative to the flow of inlet air in the air inlet path to reduce the mixture loss, and an air nozzle opens into the air inlet path at an expanding portion of the venturi in a substantially parallel orientation relative to the flow of the inlet air to reduce the ventilation resistance caused by a boundary layer and to make a uniform mixture of the gaseous fuel and the air.

Abstract: A continuous casting equipment which can be applied to a wide variation of casting capacity for continuous casting and by which a continuous casting operation can be performed with safety. The continuous casting equipment comprises a tundish for receiving molten metal poured from a ladle and for pouring the molten metal into a mold, a travelling truck for carrying the tundish between a molding section at which the mold is located and a skimming section at which molten scum in the tundish is to be discharged, and a tilting apparatus located at the skimming section for tilting the tundish together with the travelling truck on which the tundish is carried to allow molten scum to be discharged from within the tundish. Also an improved continuous casting method is disclosed.

Abstract: A transducer-to-medium stabilizer assembled with a transducer in a recording and/or reproducing apparatus is disposed in an opposing relationship with a flexible storage disk which is used as an information recording medium. The stabilizer comprises first and second block members which protrude from a base block member and a static pressure releasing arrangement on said stabilizer device. When the flexible storage disk is rotated at a high speed with respect to the stabilizer device, a negative pressure is formed between the stabilizer device and the disk, resulting in that the transducer is maintained in a constant and stable contact relationship with the disk.

Abstract: A piping assembly suitable for cooling a roller section in a secondary cooling zone of a continuous casting line, the roller section having a number of cast strip guide rollers mounted on a support frame through bearing boxes, wherein the piping system includes cooling water passages provided within the frame of the roller section and cooling water circulating ports formed in the wall of the frame and disconnectibly connected to cooling water passages in the bearing boxes and guide rollers.

Abstract: A porous layer consisting of sintered material containing metal powder or ceramics powder is provided as the inner surface of a mold for use in continuous metal casting, and a shielding plate is provided on the outside of this porous layer. A gas is supplied in a gap portion formed between the porous layer and the shielding plate and the gas is spouted out from the porous portions in the porous layer into the inside of the mold, thereby forming a gas film between the inner surface of the mold and the molten metal. Electromagnetic coils are interposed between a stiffening plate and sandwiching frames around the mold and hanger frames supporting them. An annular cylindrical partition wall surrounding a nozzle is provided between the mold and a tundish, and a water-cooled reflecting plate having an annular downward reflecting surface is also provided therebetween.