摘要:
Fluorine or a fluorine compound is subjected to a reaction with a spent oxide fuel to produce fluorides of uranium and plutonium, and the fluorides are recovered using a difference in volatility behavior. The spent oxide fuel is subjected to a reaction with an HF gas, whereby uranium, plutonium and most impurities are converted into solid fluorides having low valences or remained as oxides to inhibit volatilization thereof, and then in an F2 fluorination step, the HF fluorination product is subjected to a reaction with a fluorine gas in two stages: one at a low temperature and the other at a high temperature, whereby a certain amount of gaseous uranium and volatile impurities are separated with plutonium kept in a solid form in the first stage, and mixed fluorides of remaining uranium and plutonium are fluorinated into hexafluorides at the same time in the second stage. By such a reprocessing method, plutonium enrichment can be adjusted, uranium and plutonium can be purified, and steps are simplified as well. In addition, reactors are hard to be corroded or deteriorated.
摘要:
Fluorine or a fluorine compound is subjected to a reaction with a spent oxide fuel to produce fluorides of uranium and plutonium, and recovering the fluorides using a difference in volatility behavior. The method includes steps of: subjecting a mixture of UO2 and PuO2 with hydrogen fluoride mixed with hydrogen to HF-fluorinate uranium and plutonium into UF4 and PuF3; subjecting UF4 and PuF3 with a fluorine gas to F2-fluorinate uranium and plutonium into UF6 and PuF6; and fractionating UF6 and PuF6 using a difference in phase change of obtained UF6and PuF6, removing a part of UF6, and volatilizing the remaining UF6 and PuF6 at the same time. By such a reprocessing method, PuF4 hard to undergo a reaction is prevented from being formed as an intermediate fluoride, the material of a reactor is hard to be corroded, and a consumption of expensive fluorine gas is reduced.
摘要:
Fluorine or a fluorine compound is subjected to a reaction with a spent oxide fuel to produce fluorides of uranium and plutonium, and the fluorides are recovered using a difference in volatility behavior. The spent oxide fuel is subjected to a reaction with an HF gas, whereby uranium, plutonium and most impurities are converted into solid fluorides having low valences or remained as oxides to inhibit volatilization thereof, and then in an F2 fluorination step, the HF fluorination product is subjected to a reaction with a fluorine gas in two stages: one at a low temperature and the other at a high temperature, whereby a certain amount of gaseous uranium and volatile impurities are separated with plutonium kept in a solid form in the first stage, and mixed fluorides of remaining uranium and plutonium are fluorinated into hexafluorides at the same time in the second stage. By such a reprocessing method, plutonium enrichment can be adjusted, uranium and plutonium can be purified, and steps are simplified as well. In addition, reactors are hard to be corroded or deteriorated.
摘要:
Fluorine or a fluorine compound is subjected to a reaction with a spent oxide fuel to produce fluorides of uranium and plutonium, and recovering the fluorides using a difference in volatility behavior. The method includes steps of: subjecting a mixture of UO2 and PuO2 with hydrogen fluoride mixed with hydrogen to HF-fluorinate uranium and plutonium into UF4 and PuF3; subjecting UF4 and PuF3 with a fluorine gas to F2-fluorinate uranium and plutonium into UF6 and PuF6; and fractionating UF6 and PuF6 using a difference in phase change of obtained UF6 and PuF6, removing a part of UF6, and volatilizing the remaining UF6 and PuF6 at the same time. By such a reprocessing method, PuF4 hard to undergo a reaction is prevented from being formed as an intermediate fluoride, the material of a reactor is hard to be corroded, and a consumption of expensive fluorine gas is reduced.
摘要:
The present invention provides an image data generating method in which a combined image is not distorted at the boundary area between a left eye image and a right eye image even when the combined image has been compressed with lossy compression among three-dimensional image data generating methods in which a combined image is generated by combining a left eye image and a right eye image. The three-dimensional image data generating method includes a combined image generating step (SA2 or SA3) in which the combined image including a buffer region between the left eye image and the right eye image is generated while the left eye image and the right eye image are arranged, and an image date compressing step (SA4) in which the picture signal of the combined image generated in the combined image generating step (SA2 or SA3) is compressed with lossy compression.
摘要:
An information processing apparatus to be used in a printing system having a client apparatus connected to an image forming apparatus via a network, and a server apparatus that manages setting parameters of printing conditions that can be set up on said client apparatus, said information processing apparatus being able to serve as the client apparatus and comprising: a judgment unit for judging whether said information processing apparatus is a client apparatus or not, with reference to identification information concerning said image forming apparatus stored inside said information processing apparatus; and a setting screen control unit for providing a setting screen that allows a user to select said setting parameters if it is judged that said information processing apparatus is not a client apparatus, and for providing a setting screen that allows a user to modify setting values of said selected setting parameters and prevents the user from modifying setting values of the remaining setting parameters if it is judged that said information processing apparatus is a client apparatus.
摘要:
An image processing device, and associated method and computer program product, includes a user interface control unit that causes respective appearance materials in an image portfolio to be displayed on a display. Respective appearance materials are displayed in a spatial relationship. The user interface display control unit changes respective relationship values between the respective appearance materials in response to a change in the spatial relationship received as input to the user interface display control unit.
摘要:
Provided is a gasket for an electrochemical cell, which has good sealing performance and is capable of improving productivity of the gasket, and an electrochemical cell. A gasket (4) for an electrochemical cell, which is made of a resin and has an annular shape including an outer wall and an inner wall, includes a plurality of annular salient portions (4a) formed on an inner side surface of the outer wall.
摘要:
A motor assembly includes an electric motor and a speed reducing mechanism. The speed reducing mechanism includes: a housing; an internal gear supported by the inner diameter surface of the housing; eccentric disks capable of rotating inside the internal gear when the rotating shaft of the electric motor rotates; an output shaft having at the axial end thereof a cage rotatably disposed between the internal gear and the eccentric disks, the cage being arranged coaxially with the rotation axis of the eccentric disks; and rolling elements retained by the cage and meshing with internal teeth of the internal gear, the number of the rolling elements being smaller than the number of the internal teeth. The eccentric disks are provided on the rotating shaft of the electric motor.
摘要:
A rotation transmission device includes a two-way clutch which is selectively engaged and disengaged by an electromagnetic clutch. The two-way clutch includes a control retainer and a rotary retainer. The control retainer and the rotary retainer have flanges and bars formed on outer peripheral portions of the respective flanges and arranged so as to circumferentially alternate with each other with pockets defined between adjacent bars. Two rollers are received in each pocket. When the control retainer and the rotary retainer are rotated relative to each other, the rollers are adapted to be pushed by the bars to the disengaged position. An anti-rotation arrangement is provided on opposed surfaces of an outer ring and the control retainer member. The anti-rotation arrangement is adapted to prevent the control retainer from rotating relative to the outer ring while the rollers are in engagement, thereby preventing the rollers from moving to the neutral position.