摘要:
An oxidation catalyst according to the present invention is prepared, for example, by heat processing a gold compound at 150° C. to 80° C., yielding ultrafine gold particles, which are then mixed with a palladium compound and a compound containing at least one element selected from the group consisting of alkaline metals and the elements of Groups IIA, IIIA, VIA, IIB, VB, and VIII of the Periodic Table. By an oxidation reaction between a benzyl compound such as p-xylene and a carboxylic acid such as acetic acid in the presence of oxygen and the oxidation catalyst prepared as above, a benzyl ester such as p-methylbenzyl acetate or p-xylylene diacetate can be produced. Consequently, it is possible to provide an oxidation catalyst suitable for use in industrially producing the foregoing benzyl esters, a method of preparing the foregoing oxidation catalyst, and a method of producing the foregoing benzyl esters efficiently and at low cost.
摘要:
An object of the present invention is to provide an image processing apparatus and an image processing method both offering a high-precision and general-purpose capability of identifying an image and performing appropriate processing depending on whether identification is effected. In the image processing apparatus and image processing method, image data is detected in visible and invisible light reflected from each of a target pixel and surrounding pixels. Based on the image data detected in visible and invisible light, a specific pattern is identified. The specific pattern appears substantially the same in color as a surrounding area under visible light but different in characteristic therefrom under invisible light, which is identified using the image data of the target pixel and surrounding pixels provided by a detector. The image processing apparatus is controlled depending on whether the identification is effected.
摘要:
An image processing apparatus prevents the misdetermination of a read color and allows correct marker edition. A marker registration circuit reads and register color data marked by a predetermined color marker and a color determination circuit compares the color data registered and the read color data at the reading of the document sheet to determine a color code of the marker color. An area determination circuit determines whether an area being read belongs to a normal area, a line area or a paint area and an output color determination circuit determines a color to be outputted in accordance with the color code and the area being read.
摘要:
A first wave of a glass breaking sound has a sharp peak due to an impact sound and thereafter it attenuates rapidly. The attenuating characteristics of the first wave is measured with an attenuating time or a magnitude of attenuation thereof so that whether or not glass breaking has occurred is determined. Since an original waveform obtained by a microphone includes noise, low frequency components are eliminated by a high pass filter. The characteristics of the first wave of the glass breaking sound is almost stable. Therefore, by detecting the characteristics from the first wave, the glass breaking can be detected without errors. Further, since the glass breaking is detected by attenuation of the first wave, the detection can be carried out quickly.
摘要:
A specified original that is not supposed to be copied is marked with a pattern that is formed by infrared reflected light. A copying apparatus includes a detecting unit for detecting the pattern and determines that an original is the specified original in accordance with the detection by the detecting unit. A copying operation is controlled in accordance with the determination of whether the original is the specified original that is not supposed to be copied.
摘要:
This invention has as its object to reduce the apparatus scale by simplifying the arrangement of an image reading apparatus for radiating light including both visible and non-visible components, and detecting light obtained from a predetermined image, and provides an image reading apparatus which has illumination means for simultaneously radiating both light including a visible component and light including a non-visible component, and detection means for detecting light obtained from a predetermined image in accordance with the light radiated from the illumination means, including filter means which can be switched in accordance with whether the visible or non-visible component is radiated from the illumination means onto the predetermined image, and control means for controlling a switching operation of the filter means.
摘要:
An automobile trunk lid having an air spoiler on its upper surface, both being made of a fiber-reinforced plastic and integrally molded in one piece. Since such a trunk lid with an integral air spoiler has no joint therebetween, it has an improved decorative effect and is free from the entry of dust and wax into a joint.
摘要:
A photographic camera provided with flash tube has a voltage detector for detecting the voltage level of a power supply; a control circuit controlled by the detector for preventing start of the photographing operation until the voltage source of the power supply recovers to a predetermined level during charging of a first capacitor for firing of the flash tube; and a second capacitor connected in parallel with the power supply and connected between a primary winding of an electric voltage boosting circuit and the power supply. By this arrangement, the start of the photographing operation is prevented until the voltage level of the power supply is fully recovered after firing of the flash tube and operation of the camera.
摘要:
An extensible stay extending between a rear end closure and the body of the automobile. The stay is attached to the body at the end adjacent to the body through an L-shaped bracket. A bracket cover is provided to cover the L-shaped bracket so as to avoid any danger by having the bracket exposed. The appearance is also improved by the cover.
摘要:
An automatic machining system incorporating all the features of a numerically controlled type machine while eliminating the need for paper tapes. The tool receiving head incorporates means for identifying the moment of contact between tool and work piece, avoiding the need for inputting start position data. Motion control and drive means are provided for X, Y and Z head movement. The novel design provides drilling or punching by insertion of the proper tool in a head adapted to receive either tool.Visual displays provide step by step directions and allow for selection of the machining operation and sequential execution of the machining steps in accordance with inputted data requested by the display.The punching tool operates automatically simply under control of Z axis movement.