摘要:
Disclosed is a process of producing a porous metal body containing a metal component which is likely to be oxidized, by which process the amounts of residual carbon and residual oxygen therein are decreased, and by which the performance of the product porous body can be largely promoted. The process for producing a porous metal body by sintering a material of the porous metal body, which material is obtained by coating a slurry containing a metal powder and an organic binder on an organic porous aggregate, comprises a defatting step of treating the material of the porous metal body at a temperature not higher than 650° C. in an atmosphere containing carbon monoxide and carbon dioxide; a decarbonization step of treating the material of the porous metal body after the defatting step in an inert atmosphere or vacuum atmosphere at a temperature not higher than sintering temperature; and a sintering step of retaining the material of the porous metal body after the decarbonization step in an inert atmosphere, vacuum atmosphere, hydrogen atmosphere, or in a reducing atmosphere containing hydrogen gas and an inert gas at a temperature not higher than the melting point of the metal powder.
摘要:
A personal digital assistant includes an input section for designating, when a user requests information based on positional information, whether user desires to acquire wide-area information or narrow-area information. If acquisition of narrow-area information is desired, a managing server removes noise by a noise removal processing section which makes a check to determine whether or not the wide-area information is noise. Hence, information desired by the user is preferentially displayed.
摘要:
A system on a network provides estimated time of arrival information to a client located on the network. The system is adapted to present to the client pages for eliciting a product inquiry including a product number. The system receives the product inquiry, determines estimated time of arrivals for various destinations for at least one in-transit unit having the product number, and transmits to the client the estimated time of arrivals.
摘要:
A fuel cell system is provided which generates electricity by supplying fuel gas and oxidant gas to a fuel cell stack comprising a fuel cell stack, a DC power supply, and a controller. The DC power supply comprises at least one of a generator and battery. The controller is programmed to determine whether or not the fuel cell stack is generating electricity, and to supply current to the fuel cell stack by at least one of the generator and the battery when generation of electricity by the fuel cell stack is terminated. The current supplied to the fuel cell stack removes residual water in the fuel cell stack by electrolytically reducing the water into hydrogen and oxygen gasses which are subsequently purged from the fuel cell stack.
摘要:
A fuel cell is disclosed having a water channel and a polymeric material contained in the water channel which minimizes freezing of water in the channel at sub-zero temperatures. Embodiments including attaching a thermo-responsive polymer such as an N-isopropyl acrylamide to the surface of the water channel to cause the thermo-responsive polymer to expand at low temperatures thereby reducing the propensity for water to freeze in the channel and also to cause the thermo-responsive polymer to contract at higher temperatures thereby preventing any restriction in the flow of circulating water in the channel.
摘要:
It is an object of the present invention to provide an optical pickup apparatus which is capable of supporting multiple wavelengths in a reduced size without using a combined prism.An apparatus includes light emitting means having a plurality of integrated light emitting portions for emitting laser beams of different wavelengths, the light emitting means being adapted to selectively emit one of the laser beams of different wavelengths; photodetecting means for detecting the laser beam; and an optical system for directing the laser beam emitted from the light emitting means to the disc, and for directing the laser beam reflected by the disc to the photodetecting means, wherein the light emitting means is positioned such that a straight line connecting respective light emitting points of the plurality of light emitting portions is coincident with a tangential line of a track on a disc to be reproduced.
摘要:
Before warmup of a fuel cell stack (1) is complete, a cooling water pressure of the fuel cell stack (1) is suppressed lower than the pressure used when the fuel cell system is run in the steady state. In this way, when the system is started from a low temperature state, water in a cathode (2) and anode (3) flows efficiently into the cooling water passage (9), and water clogging is prevented while maintaining a proper water balance in the fuel cell system.
摘要:
First and second guiding passages are defined in a ramp member. The first guiding passage extends along a first inclined plane intersecting with a reference plane by a first inclined angle. The second guiding passage extends along a second inclined plane intersecting with the reference plane by a second inclined angle larger than the first inclined angle. The first guiding passage serves to prevent collision between a recording disk and a head slider in a recording disk drive. The second guiding passage serves to enable a short-distance movement of the head slider on the ramp member. The boundary of a data zone can be located closest to the outer periphery of the recording disk.
摘要:
Methods are provided for complementarily dividing, on a divided stencil reticle as used in charged-particle-beam (CPB) microlithography, certain pattern elements into complementary pattern-element portions, and for exposing the pattern-element portions without significantly reducing throughput. For example, a large-area pattern element, having length and width equal to or greater than a division criterion L, is complementarily divided into linear pattern-element portions each having a width
摘要:
Laser beams h1, h2 with different wavelengths emitted from semiconductor lasers 2a, 3 are incident to an optical path joint prism 13 and each of optical intensities of the laser beams h1, h2 is detected by a photoelectric conversion element 15 provided in an optical path integrated by the optical path joint prism 13 on which a semi-transmission film HM is provided and APC control of each of light emission intensities of the semiconductor lasers 2a, 3 is performed on a basis of each of detection results. As a result of this, the beam intensity of the laser beam h1 passing through the optical path joint prism 13 to be applied to an information recording medium and the laser beam h2 reflecting the optical path joint prism 13 to be applied to the information recording medium are controlled properly.