Method of extracting and separating spent solvent generated in nuclear
fuel cycle
    64.
    发明授权
    Method of extracting and separating spent solvent generated in nuclear fuel cycle 失效
    在核燃料循环中提取和分离产生溶剂的方法

    公开(公告)号:US5171447A

    公开(公告)日:1992-12-15

    申请号:US729412

    申请日:1991-07-12

    IPC分类号: G21C19/46 G21F9/06 G21F9/08

    CPC分类号: G21F9/06 Y10S210/907

    摘要: A method of extracting and separating a spent solvent generated in a nuclear fuel cycle and containing a phosphate (TBP) and a higher hydrocarbon (n-dodecane). This method comprises bringing the spent solvent into contact with methanol, thereby causing the spent solvent to be separated into a phase mainly composed of the higher hydrocarbon and a methanol phase containing the phosphate. By drying the phase mainly composed of the higher hydrocarbon at a low temperature, a minor amount of methanol contained in the phase is separated through evaporation to recover the higher hydrocarbon. By drying the methanol phase at a low temperature, methanol is recovered through evaporation and the phosphate remains as a remaining solution. The remaining solution may further be subjected to low-temperature vacuum distillation to separate the solution into the phosphate (TBP) and a deterioration product thereof (DBP).

    摘要翻译: 提供和分离在核燃料循环中产生的含有磷酸盐(TBP)和高级烃(正十二烷)的废溶剂的方法。 该方法包括使废溶剂与甲醇接触,从而使废溶剂分离成主要由高级烃和含有磷酸盐的甲醇相组成的相。 通过在低温下干燥主要由高级烃组成的相,通过蒸发分离相中所含的少量甲醇以回收高级烃。 通过在低温下干燥甲醇相,通过蒸发回收甲醇,磷酸盐保留作为剩余溶液。 剩下的溶液可进一步进行低温真空蒸馏,将溶液分离成磷酸盐(TBP)及其劣化物(DBP)。

    Compact-size zoom lens system
    65.
    发明授权
    Compact-size zoom lens system 失效
    紧凑型变焦镜头系统

    公开(公告)号:US5153777A

    公开(公告)日:1992-10-06

    申请号:US622715

    申请日:1990-12-05

    CPC分类号: G02B15/173

    摘要: A compact-size, light-weight, low-cost zoom lens system with high optical quality is achieved by using a ray restrictor placed at the most object side of the zoom lens system. In one type, the ray resistor shifts toward the object at a speed different from that of the most object side lens of the zoom lens system as the zoom lens system is zoomed toward the longest focal length, which effectively blocks harmful rays causing coma flare in the peripheral area. In another type, the aperture diameter of the ray restrictor varies according to a zooming operation. The ray restrictor of any type is especially effective when used in a zoom lens system composed of two lens groups. By introducing one or more aspherical surfaces satisfying a certain condition (or conditions) in the zoom lens system, various aberrations are further favorably corrected.

    摘要翻译: 通过使用放置在变焦透镜系统的最物体侧的射线限制器来实现具有高光学质量的紧凑型,重量轻,低成本的变焦透镜系统。 在一种类型中,随着变焦透镜系统朝向最长焦距变焦,射线电阻以与变焦透镜系统的最物体侧透镜的速度不同的速度朝向物体移动,这有效地阻挡了导致昏迷的有害射线 周边地区。 在另一种类型中,光线限制器的孔径根据变焦操作而变化。 当用于由两个透镜组组成的变焦透镜系统中时,任何类型的光线限制器是特别有效的。 通过在变焦透镜系统中引入满足一定条件(或条件)的一个或多个非球面,可进一步有利地校正各种像差。

    Apparatus and method for reducing noise in a video signal
    66.
    发明授权
    Apparatus and method for reducing noise in a video signal 失效
    用于降低视频信号中的噪声的装置和方法

    公开(公告)号:US5146330A

    公开(公告)日:1992-09-08

    申请号:US713641

    申请日:1991-06-10

    IPC分类号: H04N5/21

    CPC分类号: H04N5/21

    摘要: A noise reduction circuit (13) in which a difference signal (S.sub.I -S.sub.I1) between the original video signal (S.sub.I) and a delayed video signal (S.sub.I1) obtained by passing the original video signal (S.sub.I) through a delay circuit (5) is obtained, and a signal obtained by passing the above difference signal (S.sub.I -S.sub.I1) through a gain control amplifier (8) is subtracted from the above original video signal (S.sub.I), and the gain which reflects movement in the gain control amplifier (8) is controlled by a movement detection signal (S.sub.M) of the above original video signal (S.sub.z) and a detection signal (S.sub.c) which reflects the input electric field strength so as not to decrease the gain of the gain control amplifier (8) at middle to weak electric field, the noise reduction circuit may be applied to a television receiver, etc.

    摘要翻译: 一种降噪电路(13),其中通过将原始视频信号(SI)通过延迟电路(5)获得的原始视频信号(SI)和延迟视频信号(SI1)之间的差分信号(SI-SI1) 并且从上述原始视频信号(SI)中减去通过将上述差分信号(SI-SI1)通过增益控制放大器(8)获得的信号,反映在增益控制放大器 8)由上述原始视频信号(Sz)的移动检测信号(SM)和反映输入电场强度的检测信号(Sc)控制,以便不降低增益控制放大器(8)的增益, 在中弱电场中,噪声降低电路可以应用于电视接收机等。

    Method of separating and purifying spent solvent generated in nuclear
fuel cycle
    67.
    发明授权
    Method of separating and purifying spent solvent generated in nuclear fuel cycle 失效
    在核燃料循环中分离和净化产生溶剂的方法

    公开(公告)号:US5110507A

    公开(公告)日:1992-05-05

    申请号:US673064

    申请日:1991-03-22

    IPC分类号: G21C19/46 G21F9/08

    CPC分类号: G21F9/08

    摘要: A method of separating and purifying a spent solvent generated in a nuclear fuel cycle and containing a phosphate and a higher hydrocarbon. This method comprises treating the spent solvent at a temperature not greater than the freezing point of the higher hydrocarbon but not less than the freezing point of the phosphate to selectively freeze the higher hydrocarbon, and separating a resulting frozen solid mainly composed of the higher hydrocarbon from a remaining solution containing the phosphate in a higher concentration. The remaining solution may further be subjected to low-temperature vacuum distillation to separate the solution into the phosphate and a deterioration product thereof.

    Scrambled television signal receiver system
    68.
    发明授权
    Scrambled television signal receiver system 失效
    加扰电视信号接收系统

    公开(公告)号:US4636855A

    公开(公告)日:1987-01-13

    申请号:US585174

    申请日:1984-03-01

    CPC分类号: H04N5/913 H04N2005/91364

    摘要: A television signal receiving system for use with a scrambled television signal or a standard television signal includes a recording and reproducing circuit which records and reproduces the received television signal and a monitor for displaying the received or reproduced television signal. A descrambling circuit descrambles the scrambled television signal either as received or reproduced to generate a descrambled television signal when a detector detects the existence of a scrambled television signal and generates a control signal in response thereto. A switch responds to the control signal and automatically supplies to the monitor either the descrambled television signal or the standard television signal according to the type of television signal being received or reproduced.

    摘要翻译: 与加扰电视信号或标准电视信号一起使用的电视信号接收系统包括记录和再现接收的电视信号的记录和再现电路以及用于显示接收或再现的电视信号的监视器。 解扰电路解扰加扰的电视信号,如果接收或再现,以便当检测器检测到加扰的电视信号的存在并产生响应于此的控制信号时产生解扰的电视信号。 开关响应控制信号,并根据接收或再现的电视信号的类型自动向监视器提供解扰的电视信号或标准电视信号。

    Method and apparatus for recording scrambled television signals
    69.
    发明授权
    Method and apparatus for recording scrambled television signals 失效
    用于记录加扰电视信号的方法和装置

    公开(公告)号:US4635112A

    公开(公告)日:1987-01-06

    申请号:US583318

    申请日:1984-02-24

    摘要: A scrambled television program is received and recorded in a scrambled fashion automatically in a video tape recorder by detecting program code signals placed in vertical blanking intervals of ten fields preceding the commencement of the scrambled program signal and upon sensing such program code signals the video tape recorder is activated to record the scrambled television program. A stop code signal is arranged following the coded television program and is detected for stopping operation of the video recorder, so that the scrambled program is recorded without requiring the manual setting of automatic timers or the like. In addition to the program code, a key code, and scene change signals are transmitted and these are used to produce a descramble pattern to descramble the television program when it is reproduced by the video tape recorder. By placing the key code after the television program, the entire program must be recorded in scrambled form before it can be reproduced and descrambled for viewing, thereby automatically recording the scrambled program without requiring a timer.

    摘要翻译: 通过检测放置在加扰的程序信号开始之前的十个场的垂直消隐间隔中的程序代码信号,并且在检测到这样的程序代码信号时,录像带记录器 被激活以记录加扰的电视节目。 在编码的电视节目之后布置停止码信号,并且被检测用于停止录像机的操作,从而在不需要自动定时器等的手动设置的情况下记录加扰程序。 除了程序代码之外,还发送了一个键码和场景改变信号,并且这些信号被用于产生解扰模式,以便当电视节目被录像机再现时对其进行解扰。 通过将密钥代码放置在电视节目之后,整个节目必须以加扰形式记录,才能被再现和解扰以供观看,从而自动记录加扰的节目而不需要定时器。