摘要:
New compounds of .alpha.-(3-(1-phenylethenyl)phenyl)-propionic acid and its esters and a method for producing .alpha.-(3-benzoylphenyl)propionic acid which is prepared by oxidizing the former compound as an intermediate. The method is characterized in the easiness in operation, the low cost and the high purity of the product.
摘要:
The invention relates to a new compound of (3-Vinylphenyl)phenylmethane and a method for producing .alpha.-(3-benzoylphenyl)propionic acid of ketoprofen without difficulty at low cost and in a high yield. The method comprises the steps of: reacting (3-vinylphenyl)phenylmethane with carbon monoxide and hydrogen, water or lower alcohol in the presence of a transition metal carbonylation catalyst to form .alpha.-(3-benzylphenyl)propionic acid derivative, and when the thus obtained compound is an aldehyde, oxidizing methylene group and formyl group of the compound simultaneously or sequentially, or when the obtained compound is an acid or its ester, oxidizing the methylene group of the compound, and if need be, it is followed by hydrolysis.
摘要:
A device for detecting angular accelerations and decelerations of a vehicle wheel. The device comprises a first shutter member of cylindrical shape secured to a rotating member of a vehicle, which rotates with a vehicle road wheel, and having a cylindrical side wall formed therethrough with a multitude of circumferentially equispaced holes, a sensor weight mounted on said rotating member through damping means for limited angular movement relative thereto, a second shutter member of cylindrical shape secured to said weight and arranged in radially spaced coaxial relation with said first shutter member, said second shutter member having a cylindrical side wall formed therethrough with a multitude of circumferentially equispaced holes. Said last-mentioned holes being arranged so as to be registrable with said first-mentioned holes but normally placed out of registry therewith, a pair of light-beam emitting and receiving means fixedly mounted on a nonrotating member of the vehicle in radially aligned, spaced and opposite relation to each other with said first and second shutter members disposed therebetween, wherein when said sensor weight is caused, due to an angular acceleration or deceleration of said wheel exceeding a prescribed value, to rotate relative to said rotating member, said holes in said first and second shutter members are placed into registry with each other so that said light-beam receiving means receives light beam emitted from said light-beam emitting means.
摘要:
A control unit determines the content of a video based on an input video signal based on results of determination utilizing a monochrome determination unit and a text determination unit. Based on a display mode according to a result of the content determination, the control unit displays an image corresponding to the input video signal on a display panel.
摘要:
A fuel exchange apparatus, comprising: a traveling carriage moving horizontally in one direction; a traversing carriage moving horizontally on the traveling carriage in a direction orthogonal to the one direction in which the traveling carriage moves; and a fuel holding unit attached to the traversing carriage, and including an telescopic tube enabling to extend and contract, a holding tool for holding a fuel assembly and releasing the held fuel assembly, and a lifter for raising and lowering the holding tool by winding and running out linear members for suspending and supporting the holding tool from the traversing carriage, wherein the holding tool is selectively placed in a constrained state in which the holding tool is subject to a constraint by the telescopic tube and in a freely suspended state in which the holding tool is released from the constraint by the telescopic tube and freely suspended by the linear members.
摘要:
In a video display device of the present invention, a main control unit is equipped with a user interface for varying correction values set to a range correction unit and controls a range correction unit by acquiring the corresponding correction values from a storage unit in accordance with correction level information input by the user interface. The storage unit stores range correction values for the video display unit in correspondence with each piece of the correction level information input by the user interface. Thus, it is possible to correct luminance ranges to suit the user's preference without causing a large luminance reduction.
摘要:
There is provided an image signal repeater apparatus with a simple construction, which can prevent the accumulation of jitter even if the image signal repeater apparatuses are connected in multiple stages, and which enables the reception of image signals of various frequencies. This comprises: an image signal device 22 which receives a composite image signal, comprising an image signal composed of multiple frames and a synchronization signal corresponding to the image signal, and then outputs each signal as a composite image signal Di; an image signal recovery device 26 which internally generates a clock signal Cl which corresponds to a frequency of a synchronous signal in the composite image signal Di, but which is not synchronized with the image signal in the composite image signal Di, and recovers the input image signal Di using the clock signal Cl, to recover an image signal Dr, and an image signal transmission device 27 which converts the recovered image signal Dr output from the image signal recovery device 26, to a digital transmission signal, and outputs the converted signal.
摘要:
A non-evaporating getter maintains the adsorbability for the residual gases, and in addition, secures sufficient characteristics particularly even when it experiences a high-temperature and low-vacuum condition in the fabrication process of a display unit. The non-evaporating getter includes a substrate having no function as a getter and a polycrystalline film arranged on the substrate which film contains Ti as the main component and has a host of voids in the interior thereof. A non-evaporating getter is made by forming a polycrystalline film containing Ti as the main component on the concavo-convex surface of the substrate which substrate has concavities and convexities on a surface thereof and has no function as a getter.
摘要:
This invention provides a pitch fiber bundle for carbon fibers of small size, a carbon fiber bundle, and a method for the production thereof, i.e. a method for the production of carbon fibers of a small size, a pitch fiber bundle, and a carbon fiber bundle at a lower cost with higher productivity than usual. The method for the production of pitch type carbon fibers according to this invention comprises dividing a plurality of pitch fibers into not less than two bundles, intertwining the bundles by exposure to currents of air thereby forming a first fiber bundle, binding a plurality of such first fiber bundles, and again intertwining the bound pitch fiber bundles by exposure to currents of air thereby forming a second fiber bundle.
摘要:
Image-forming apparatuses include getters that are suitably placed. The getters can be fixed using inorganic adhesives and function effectively by suitably setting weight ratios between getter powder and the adhesives.