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    INTERFEROMETER SYSTEMS
    31.
    发明申请
    INTERFEROMETER SYSTEMS 审中-公开
    干涉仪系统

    公开(公告)号：WO1979000506A1

    公开(公告)日：1979-08-09

    申请号：PCT/GB1979000006

    申请日：1979-01-11

    Applicant: NAT RES DEV CORP ,  DOWNS M ,  RAINE K

    Inventor： NAT RES DEV CORP

    IPC: G01B09/02

    CPC classification number: G01B9/02079

    Abstract: In a Michelson interferometer system arranged to give four output interferograms, two at each orthogonal direction of polarisation, the reflection and transmission coefficients of the interferometer beam splitter (10) at the two polarisation directions are chosen so that the ratios of the a.c. component to the d.c. component are equal in three of the interferograms. Difference signals derived from the three interferograms are suitable for use with an automatic, reversible, fringe counting system.

    Abstract translation: 在迈克尔逊干涉仪系统中，布置成给出四个输出干涉图，在每个正交正交方向上两个，选择干涉仪分束器（10）在两个偏振方向上的反射和透射系数，使得a.c. 组件到d.c. 三个干涉图中的分量相等。 来自三个干涉图的差分信号适用于自动，可逆的条纹计数系统。

    ELECTRO-FLUID CONTROL DEVICE
    33.
    发明申请
    ELECTRO-FLUID CONTROL DEVICE 审中-公开
    电液控制装置

    公开(公告)号：WO1982003431A1

    公开(公告)日：1982-10-14

    申请号：PCT/GB1982000092

    申请日：1982-03-23

    Applicant: NAT RES DEV CORP ,  PARKER GRAHAM ALEXANDER

    Inventor： NAT RES DEV CORP

    IPC: F15B13/044

    CPC classification number: F16K31/0634 ,  F16K31/0627

    Abstract: An electrically-operable fluid pressure control device (10) in which the valve elements are magnetically susceptible discs (51, 52) operable by pot-coil electromagnets (63, 64) to close or not close at separate or simultaneous times respective ports (41, 44). When not closing these ports the discs can close other ports (42, 43) but not both at one time by the opposition of a link member (7) which is also effective to aid the unseating of one disc from the respective port of 42 and 43 when the other disc approaches. The speed and reliability of operation are obtained from this construction by relatively simple and non-critical manufacture. The fluid can be gas or liquid e.g. water/hydraulic oil as no close-tolerance sliding surfaces exist.

    Abstract translation: 一种电动可操作的流体压力控制装置（10），其中所述阀元件是磁性易受影响的盘（51,52），其可由锅式线圈电磁体（63,64）操作，以在分开的或同时的时间关闭或不关闭相应的端口（41 ，44）。 当不关闭这些端口时，光盘可以通过链接构件（7）的反对来一次关闭其他端口（42,43），但是这两个端口也是有效的，这有助于从42的相应端口卸下一个盘，并且 当另一个盘接近时。 通过相对简单和非关键的制造从这种结构获得操作的速度和可靠性。 流体可以是气体或液体，例如 水/液压油不存在紧公差滑动表面。

    THE DETECTION AND DETERMINATION OF SPECIES BY FLUORESCENCE MEASUREMENTS
    34.
    发明申请
    THE DETECTION AND DETERMINATION OF SPECIES BY FLUORESCENCE MEASUREMENTS 审中-公开
    通过荧光测量法检测和确定物种

    公开(公告)号：WO1980002746A1

    公开(公告)日：1980-12-11

    申请号：PCT/GB1980000098

    申请日：1980-06-06

    Applicant: NAT RES DEV CORP ,  GIFFORD L ,  MALCOLME LAWES D

    Inventor： NAT RES DEV CORP

    IPC: G01N23/22

    CPC classification number: G01N23/223 ,  G01N30/74 ,  G01N2223/076 ,  G01N21/05

    Abstract: A fluorimetric detector comprises a radionuclide source e.g. a sNi or sPm source, as the fluorescence excitation source; and when adapted for use with flowing liquid systems, especially liquid chromatography systems, comprises a passageway for liquid flow and a monitoring system for monitoring fluorescent radiation, in which the monitoring system is located outside the liquid passageway the walls of which are transparent at least in part. Also a method for detection and determination of a species, either a fluorescent species or a species which quenches fluorescence, by fluorescence measurements comprises exposing liquid comprising the species to fluorescence exciting radiation from a radionuclide source, monitoring fluorescence thereby produced and comparing this with the fluorescence of the same liquid in the absence of the species. The use of a radionuclide as the fluorescence exciting source overcomes problems of instability of excitation of prior art visible radiation excitation fluorescence detectors.

    Abstract translation: 荧光检测器包括放射性核素源 作为荧光激发源，将sNi或sS7m sPm源作为荧光激发源; 并且当适于与流动液体系统一起使用时，特别是液相色谱系统包括用于液体流动的通道和用于监测荧光辐射的监测系统，其中监测系统位于液体通道外部，其壁至少在 部分。 另外，通过荧光测量来检测和测定物质（荧光物质或猝灭荧光的物质）的方法包括将包含该物质的液体暴露于来自放射性核素源的荧光激发辐射，监测由此产生的荧光，并将其与荧光 在没有物种的情况下，相同的液体。 使用放射性核素作为荧光激发源克服了现有技术可见光激发荧光检测器的激发不稳定性问题。

    CROP CONDITIONING APPARATUS AND METHOD
    35.
    发明申请
    CROP CONDITIONING APPARATUS AND METHOD 审中-公开
    作物调节装置和方法

    公开(公告)号：WO1979000863A1

    公开(公告)日：1979-11-01

    申请号：PCT/GB1979000053

    申请日：1979-03-30

    Applicant: BRITISH SOC RES AGRICULTURAL ENG ,  NAT RES DEV CORP ,  KLINNER W

    Inventor： BRITISH SOC RES AGRICULTURAL ENG ,  NAT RES DEV CORP

    IPC: A01D00/00

    CPC classification number: A01D43/10 ,  Y10S56/01 ,  Y10S56/02

    Abstract: In apparatus for conditioning crops such as grass, one or more conditioning devices engage crop passing through a passage and condition the crop by relative movement between the conditioning device and the crop. Preferably each conditioning device is a brush (10) having a multiplicity of stiff, resilient, elongated elements (10) which are of stiff, resilient, elongated elements (10) which are yieldable in more than one plane in response to engagement by the crop by bending of the elements. One brush may form a rotary conveying device (12) for conveying crop through the passage, and another brush (10, 37) may accelerate or retard the crop relative to the first brush. The second brush may be stationary (10) or may be another rotary brush (37). The conditioning apparatus may be mobile or stationary, and when mobile may include cutting means (22) For cutting crop to be conditioned.

    SPECKLE INTERFEROMETRIC MEASUREMENT OF SMALL OSCILLATORY MOVEMENTS
    36.
    发明申请
    SPECKLE INTERFEROMETRIC MEASUREMENT OF SMALL OSCILLATORY MOVEMENTS 审中-公开
    小波振荡器的频域干涉测量

    公开(公告)号：WO1979000841A1

    公开(公告)日：1979-10-18

    申请号：PCT/GB1979000043

    申请日：1979-03-09

    Applicant: NAT RES DEV CORP ,  PETTIGREW A ,  ANSON M ,  CHUNG S

    Inventor： NAT RES DEV CORP

    IPC: G01H09/00

    CPC classification number: A61B1/2673 ,  A61B1/227 ,  G01H9/006

    Abstract: Measurement of small oscillatory movements of an irregular surface (12) involves the production of a speckle pattern therefrom by coherent light illumination, and the arrangement of a photodetector (14) for direct response to such pattern, variations in photodetector output component at the frequency of the surface movement representing that movement. Another, stationary, illuminated irregular surface (13) can be involved to produce a speckle interference pattern for response of the photodetector (14) thereto and, in the case where the two surfaces (12, 13) are closely adjacent, a single beam can be used to illuminate the first and other surfaces predominantly and by stray light, respectively. This common beam illumination can be used in prior speckle interferometry. The first surface (12) can be an eardrum oscillated by a sound wave, suitably of swept frequency or impulse form, with detection of the photodetector variations respectively being in synchronous manner or by Fourier analysis, respectively.

    Abstract translation: 不规则表面（12）的小振荡运动的测量涉及通过相干光照射产生散斑图案，以及用于直接响应于这种图案的光电检测器（14）的布置，光电检测器输出部件的频率变化 表面运动代表这种运动。 可以涉及另一个静止的照明不规则表面（13）以产生用于光电检测器（14）对其的响应的散斑干涉图案，并且在两个表面（12,13）紧密相邻的情况下，单个光束可以 用于分别照亮第一和其他表面和杂散光。 这种共同的光束照明可以用于先前的散斑干涉测量。 第一表面（12）可以是由适当地扫掠频率或脉冲形式的声波振荡的鼓膜，分别以同步方式或通过傅立叶分析检测光电检测器变化。

    39.
    发明专利
    未知

    公开(公告)号：DE69904583D1

    公开(公告)日：2003-01-30

    申请号：DE69904583

    申请日：1999-02-11

    Applicant: NAT RES DEV CORP OF INDIA A GO

    Inventor： BANERJEE SHILOWBHADRA

    IPC: C21C5/52

    Abstract: A process for making steel in an electric arc furnace includes providing a molten charge which is a melt composed of a high carbon ferrous metal in the electric arc furnace by one of preparing the melt in the furnace or introducing the melt into the furnace, the high carbon ferrous metal being composed of less than 3% carbon, less than 0.2% silicon, and less than 0.2% manganese, and the melt having a temperature of at least 1375° C.; adding to the molten charge provided in the furnace a solid metallic charge composed of least one material selected from the group consisting of scrap steel, hot briquetted iron, direct reduced iron, and iron ore to provide a charge mixture; refining the charge mixture by melting in the absence of gaseous oxygen to provide a molten steel; and superheating, finishing and tapping the molten steel into a ladle for subsequent casting thereof.

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