摘要:
A process for regenerating a deteriorated antimony containing oxide catalyst comprising as essential components of (i) antimony and (ii) at least one metal element selected from the group consisting of iron, cobalt, nickel, manganese, uranium, cerium, tin and copper wherein the antimony containing oxide catalyst is impregnated or sprayed with an aqueous solution of nitric acid and/or a nitrate, and the impregnated catalyst is dried, and then calcined at a temperature in the range of from 400.degree. to 1000.degree. C.
摘要:
An improved bias circuit of the quarter-wavelength microstrip line type for a high-frequency amplifier is provided which is of divided form, including two, open and short stubs the sum of whose lengths in effect amounts to a quarter wavelength. The characteristic impedance of such microstrip line can be effectively increased by properly selecting the ratio of the stub lengths, thus enabling realization of a wider-band high-frequency amplifier circuit with reduced cost.
摘要:
In order to provide a page-turning reader device and a feeder device capable of continuously acquiring image data of each page of a plurality of booklets, the page-turning reader device (1) includes a feeder unit (102) that feeds a plurality of stacked booklets (10) one by one from a lower side; a holder (203) that grips and fixes a binding edge of the booklet (10) fed from the feeder unit (102); an air suction pad (206), an air blow nozzle (207), and a first page-turning bar (204) configured to turn the pages of the booklet (10) one by one while the booklet (10) is fixed by the holder (203); and an image data acquiring means (11) that acquires image data of each page of the booklet (10) using an image pickup camera (106) in synchronization with a turning operation.
摘要:
It is found that blood cytochrome c levels quantified for non-alcoholic steatohepatitis patients are higher than those for healthy persons, and that the quantified blood cytochrome c values correlated with fat deposition rates in hepatocytes. It is possible to test non-alcoholic steatohepatitis by quantifying cytochrome c in serum. A test method and a test kit for the test are provided.
摘要:
In a motor-driven power steering apparatus for a vehicle in which a worm wheel of a worm gear type speed reduction mechanism is fixed to a pinion shaft of a rack and pinion mechanism, a direction of a torsion angle β of a helical pinion provided in the pinion shaft is set to be opposite to a direction of a tooth lead angle γ of the worm wheel.
摘要:
In a motor-driven power steering apparatus for a vehicle in which a worm wheel of a worm gear type speed reduction mechanism is fixed to a pinion shaft of a rack and pinion mechanism, a direction of a torsion angle β of a helical pinion provided in the pinion shaft is set to be opposite to a direction of a tooth lead angle γ of the worm wheel.
摘要:
A ground electrode and a terminal electrode are formed on a first main surface of dielectric substrate forming a circuit board. Wiring electrodes are formed on a second main surface of the dielectric substrate. A semiconductor device and a filter are mounted on the wiring electrodes. A strip line electrode of the filter is connected to the ground electrode of the circuit board for conducting direct current, via a through-hole provided in the filter, a ground electrode of the filter, the wiring electrode, and a through-hole provided in the circuit board. With this arrangement, the terminal electrode is connected to a high-frequency signal terminal of the semiconductor device via the filter.
摘要:
A process for producing a molybdenum-bismuth-iron-containing metal oxide fluidized bed catalyst which has a controlled particle diameter and has satisfactory activity and physical properties. In a process for producing a fluidized bed catalyst containing molybdenum-bismuth-iron and silica as a carrier component, dried products formed in a spray drying step and having a particle diameter outside a desired range are pulverized, then the pulverized one is mixed into a slurry before spray drying, the resulting mixture is spray-dried, and the spray-dried particles are subjected to a classification operation to obtain particles having a diameter within the desired range, which are then calcined. The catalyst produced according to the present invention is suitable for producing acrylonitrile by ammoxidation of propylene.
摘要:
For the production of acrylonitrile by ammoxidation of propylene, there is provided a process capable of giving a high yield and maintaining such an effect for a long period of time. In producing acrylonitrile by ammoxidation of propylene, a fluidized bed catalyst is used and the reaction is carried out while appropriately adding a molybdenum-containing material, wherein the fluidized bed catalyst contains molybdenum, bismuth, iron, nickel, chromium, potassium, an F component and silica as essential components, and has a number of Mo/Me of from 0.8 to 1, wherein the Mo/Me is a number obtained by dividing the product 20 of a valence number of molybdenum as molybdic acid and an atomic ratio of molybdenum by the sum of respective products of respective valence numbers and atomic ratios of bismuth, iron, nickel, chromium, potassium, the F component element, a G component element and a Y component element.
摘要:
Electrodes are formed on both surfaces of a dielectric plate. Openings are formed in the electrodes such that pairs of openings face each other through the dielectric plate. Each pair of electrode openings defines a resonator. The resonators positioned at the ends of the dielectric plate are directly coupled to a waveguide formed by a package base and a package cover.