摘要:
The present invention provides a deodorizing method for removing malodorant components by oxidative destruction with ozone in the presence of a catalyst comprising a first component, which is a metal oxide, and a second component which is at least one member selected from the group consisting of titanium dioxide, silver oxide, silica and gold, or a catalyst comprising manganese dioxide and clay.Also, the present invention provides a deodorizing catalyst having its active components carried in a layer, having a thickness of 10 to 200 .mu.m, on the carrier, thereby stably removing malodorant components at a high rate, even when the reaction conditions are changed.
摘要:
A denitrizing catalyst with comprises:(a) a zeolite represented by the general formula (I)H.sub.A M.sub.B [(AlO.sub.2).sub.X .multidot.(SiO.sub.2).sub.Y ].multidot.2H.sub.2 0wherein M is an alkali metal or an alkaline earth metal, and A+nB=X wherein n is a valency of the metal M, in amounts of 80-99.9% by weight; and(b) at least one metal or at least one oxide of metals selected from the group consisting of Ru, Rh, Pd, Ag, Pt, Au, Co, Cu, Cr and Ni, in amounts of 0.1-20% by weight.A further denitrizing catalyst which comprises a zeolite represented by the general formulaH.sub.A (M.sup.1).sub.B (M.sup.2).sub.c [(AlO.sub.2).sub.X .multidot.(SiO.sub.2).sub.Y ].multidot.2H.sub.Z Owherein M.sup.1 is an alkali metal or an alkaline earth metal, M.sup.2 is a metal selected from the group consisting of Ru, Rh, Pd, Ag, Pt, Au, Co, Cu, Cr and Ni, A+n.sub.1 B+n.sub.2 C=X wherein n.sub.1 and n.sub.2 are valecies of the metals M.sup.1 and M.sup.2, respectively.Waste gases containing nitrogen oxides therein are denitrized by putting the gases into contact with the catalysts in the absence of reducing agents.
摘要:
There is provided a method of producing titanium oxides which comprises: admixing an aqueous solution of titanium tetrachloride with sulfuric acid in a molar ratio of sulfuric acid to titanium tetrachloride of at least 0.5 adding an alklai to the resultant solution to produce titanium hydroxide; and drying and calcining the titanium hydroxide. A further method is provided which comprises: adding a solution of an alkali to an aqueous solution of titanium tetrachloride having a concentration of not more than 2.5 moles/l at temperatures of not less than 50.degree. C., thereby to substantially thermally hydrolyze the titanium tetrachloride and to produce titanium hydroxide; and drying and calcining the titanium hydroxide.
摘要:
In an ultrasonic endoscope, excessive temperature rise due to heat generated from ultrasonic transducers and/or an image pickup device is prevented. The ultrasonic endoscope includes: an ultrasonic transducer part including plural ultrasonic transducers for transmitting and receiving ultrasonic waves, and a backing material provided on a back of the plural ultrasonic transducers and having plural signal terminals provided on a surface opposite to the plural ultrasonic transducers; a signal line holding part including a highly heat conducting filler filling a space holding a group of shield lines electrically connected to the ultrasonic transducers via the plural signal terminals, and coupled to the backing material; and a highly heat conducting layer provided in contact with the signal line holding part, and thereby coupled to the signal line holding part.
摘要:
An optical wiring substrate fabrication method capable of simple formation, by maskless exposure, of an inclined face shape at an end portion of a core layer structuring an optical waveguide. Using an exposure apparatus, image exposure is carried out with a light beam which is modulated by a spatial modulation element in accordance with image information. A predetermined area of a photosensitive material (a photoresist), which is coated on the core layer which is a material of the optical wiring substrate, is exposed by a light beam (UV) and patterned to form an etching mask. A region corresponding to the inclined face, which is to be formed at the end portion of the core layer, is exposed and patterned by the light beam, exposure amounts of which are controlled in accordance with the inclined form of the inclined face, such that an end portion of the etching mask has an inclined face structure. When the core layer is worked by etching using this etching mask, working of the core layer at the end portion of the core layer progresses in proportion to film thickness of the etching mask, and the inclined face is formed.
摘要:
An optical fiber of a bundled fiber light source is an optical fiber whose core diameter is uniform but whose emission end cladding diameter is smaller than an incidence end cladding diameter thereof, and a light emission region thereof is made smaller. An angle of luminous flux from this higher luminance bundled fiber light source, which passes through a lens system and is incident on a DMD, is smaller, i.e., an illumination NA is made smaller. Thus, an angle of flux which is incident on a surface that is to be exposed is smaller. That is, a minute image formation beam can be obtained without increasing the image formation NA, focal depth is lengthen.
摘要:
An optical element is fixed to a flat fixing surface of a mount. A recess is formed in the fixing surface or a lower surface of the optical element to be brought into contact with the fixing surface and solid-state cementing material is placed in the recess. The optical element is disposed so that its lower surface is in contact with the fixing surface, and the cementing material is once fused and solidified so that the optical element is fixed to the mount by way of the cementing material with the lower surface kept in contact with the fixing surface of the mount.
摘要:
In an exposure apparatus of the invention, for a spatial light modulator, each of a plurality of pixel portions fewer than the total number of the pixel portions is controlled with a control signal generated according to exposure information. Namely, a part of the pixel portions is controlled without controlling a whole of the pixel portions on the substrate. Thus, the number of pixels in the pixel portions is decreased, and transfer time of the control signal becomes short. This enables modulation speed of the laser beam to be increased and the high-speed exposure to be performed. An incorporated laser light source, in which the laser beams are incorporated and struck on the optical fiber, is preferable to the laser device. By adopting the incorporated laser light source, high brightness and high output can be obtained, and it is preferable to the exposure of the spatial light modulator. Since the fiber array is obtained with few optical fibers, it is low cost. Since the number of optical fibers is few, the light-emitting region is further decreased when the optical fibers are arrayed.
摘要:
A plurality of multi-cavity laser diode chips, each having a plurality of light emitting points, are fixed side by side and form a laser diode array.
摘要:
In an exposure apparatus of the invention, for a spatial light modulator, each of a plurality of pixel portions fewer than the total number of the pixel portions is controlled with a control signal generated according to exposure information. Namely, a part of the pixel portions is controlled without controlling a whole of the pixel portions on the substrate. Thus, the number of pixels in the pixel portions is decreased, and transfer time of the control signal becomes short. This enables modulation speed of the laser beam to be increased and the high-speed exposure to be performed. An incorporated laser light source, in which the laser beams are incorporated and struck on the optical fiber, is preferable to the laser device. By adopting the incorporated laser light source, high brightness and high output can be obtained, and it is preferable to the exposure of the spatial light modulator. Since the fiber array is obtained with few optical fibers, it is low cost. Since the number of optical fibers is few, the light-emitting region is further decreased when the optical fibers are arrayed.