公开(公告)号：WO1981002502A1

公开(公告)日：1981-09-03

申请号：PCT/GB1981000018

申请日：1981-02-12

Applicant: NAT RES DEV CORP ,  GERZON M

Inventor： NAT RES DEV CORP

IPC: H04S03/02

CPC classification number: H04S3/02 ,  H04S2420/11

Abstract: Decoder for feeding an irregular array of m (being three or more) pairs of diametrically opposite loudspeakers, each loudspeaker being disposed at an equal distance r from a common reference point. The decoder incorporates a WXY circuit (10) for producing output signals (W, X, Y and -jW) from the input signals, and shelf filters (12, 14, 16 and 22) and high-pass filters (18, 20 and 24) for producing output signals (W', X', Y' and -jW//c). In addition the decoder includes an amplitude matrix circuit (26) which is such that the sum of the signals (S//c and S//c fed to the loudspeakers of each pair is the same of all pairs of loudspeakers and (FORMULA) where (FORMULA) M being the 2 x m matrix (FORMULA) K being the mx 2 matrix (FORMULA) I being the 2 x 2 identity matrix, and X being a positive real constant which may be frequency dependent. A decoder is also provided for feeding a three-dimensional loudspeaker layout. Thus the outputs of the loudspeakers may be adapted to irregular positioning of the loudspeakers which may be dictated by room geometry.

Abstract translation: 用于馈送m（三个或更多）对直径相对的扬声器的不规则阵列的解码器，每个扬声器以与公共参考点相等的距离r设置。 解码器包括用于从输入信号产生输出信号（W，X，Y和-jW）的WXY电路（10），以及搁板滤波器（12,14,16和22）和高通滤波器（18,20和 24），用于产生输出信号（W'，X'，Y'和-jW // c）。 此外，解码器包括幅度矩阵电路（26），其使得馈送到每对扬声器的信号（S // c和S // c）的总和与所有扬声器对相同，并且（公式） 其中（公式）M是2×m矩阵（公式）K是m×2矩阵（公式），I是2×2单位矩阵，X是可能是频率依赖性的正实常数，解码器还用于 馈送三维扬声器布局，因此扬声器的输出可以适应扬声器的不规则定位，这可以由房间几何形状决定。

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。

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。

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.

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。

公开(公告)号：WO1982000206A1

公开(公告)日：1982-01-21

申请号：PCT/GB1981000105

申请日：1981-06-19

Applicant: NAT RES DEV CORP ,  SHANKS I

Inventor： NAT RES DEV CORP

IPC: G01R13/40

CPC classification number: G01R13/408 ,  G02F1/134336

Abstract: Deux traces de signaux sont affichees simultanement par un affichage electro-optique tel qu'un affichage a cristaux liquides. L'affichage peut avoir un format cartesien possedant m electrodes X et n electrodes Y, les electrodes X possedant dans ce cas une forme en bande tandis que chaque electrode Y comprend deux ou plusieurs composants Ya, Yb interfolies. Chaque intersection XY peut ainsi etre adressee au moyen d'une tension 0 en XYa, ou XYb avec des tensions superieures au seuil partout ailleurs. Une serie de n formes d'ondes codees differentes sont produites et chaque forme differente est appliquee a chaque electrode X. Les deux traces sont echantillonnees et converties en valeurs d'echantillons numeriques. Des formes d'ondes codees sont produites et appliquees a chaque electrode Ya Yb simultanement a celles appliquees aux electrodes X; les codes produits sont selectionnes a partir des m codes differents et se referent a la position des electrodes Y et a la valeur de l'echantillon a afficher. Les formes d'ondes codees peuvent etre des codes binaires tels que des codes pseudoaleatoires. Un encodeur de priorite attribue une priorite aux valeurs d'echantillons des deux signaux de traces.

公开(公告)号：WO1981002789A1

公开(公告)日：1981-10-01

申请号：PCT/GB1981000045

申请日：1981-03-13

Applicant: NAT RES DEV CORP ,  JOHNSON G ,  EDELSTEIN W ,  HUTCHISON J ,  MALLARD J ,  REDPATH T

Inventor： NAT RES DEV CORP

IPC: G01N24/08

CPC classification number: G01R33/482 ,  G01R33/5615 ,  G01R33/5616

Abstract: To produce image information from an object it is subjected to a continuous static magnetic field along a Z axis and to sets of sequences of gradient G u, G u and G u to the magnetic field. Spins in a selected plane (the X-Z plane) are excited by selective rf pulses of an associated G u gradient and the selected spins are subjected to a reversed G u gradient together with a G u gradient. The G u gradient is then switched off and the direction of the G u gradient is then repeatedly reversed. During the action of reversal of the G u gradient a small G u gradient is provided. Each reversed G u gradient is held constant for a sufficient time for a free induction decay signal to be generated thus providing a multiple echo of the spins in the selected plane. Alternate signals are time-reversed and then both the time-reversed and non time-reversed signals are subject to Fourier transformation.

Abstract translation: 为了从物体产生图像信息，它沿Z轴经受连续的静磁场，并且对磁场进行梯度G u，G u和G u u的序列的集合。 在选定的平面（X-Z平面）中的旋转被相关联的G uu梯度的选择性rf脉冲激发，并且所选择的自旋与G u u u梯度一起受到反转的G uu梯度。 然后将G uu u梯度关闭，然后G ux u梯度的方向重复反向。 在反转G ux u梯度的作用下，提供了一个小的G u梯度。 每个反转的G u u u梯度保持恒定足够的时间以产生自由感应衰减信号，从而在所选择的平面中提供自旋的多个回波。 交替信号是时间反转的，然后时间反转信号和非时间反相信号都进行傅里叶变换。

公开(公告)号：WO1981002788A1

公开(公告)日：1981-10-01

申请号：PCT/GB1981000044

申请日：1981-03-13

Applicant: NAT RES DEV CORP ,  EDELSTEIN W ,  HUTCHISON J ,  MALLARD J ,  JOHNSON G ,  REDPATH T

Inventor： NAT RES DEV CORP

IPC: G01N24/08

CPC classification number: G01R33/482 ,  G01R33/5615 ,  G01R33/5616

Abstract: To produce image information from an object it is subjected to a continuous static magnitic field along a Z axis and to sets of sequences of orthogonal gradients Gx, Gy and Gz to the magnetic field. Spins in a selected plane (the X-Z plane) are excited by selective rf pulses and an associated Gy gradient and the selected spins are subjected to all three gradients of which the Gz gradient provides twist or warp to each column of spins extending along the Z axis to phaseencode the columns. The spin-echo signals are read out in the presence of a Gx gradient. In each set of sequences a different value of Z gradient is employed. The Fourier transformed spin-echo signals obtained from each sequence, when arranged in order of increasing Gz gradient and subjected to a second Fourier transform represent the distribution of spin density in the Z direction, thus giving a two-dimensional image of the selected X-Z plane.

公开(公告)号：WO1980000313A1

公开(公告)日：1980-03-06

申请号：PCT/GB1979000122

申请日：1979-07-19

Applicant: NAT RES DEV CORP ,  CLARK J

Inventor： NAT RES DEV CORP

IPC: B01J33/00

CPC classification number: C07C205/45 ,  B01J27/00 ,  B01J33/00 ,  B01J37/0219 ,  C07B39/00 ,  C07C17/208 ,  C07C45/68 ,  C07C49/675 ,  C07C205/12 ,  C07C49/782

Abstract: Stabilisation against water uptake of hygroscopic salts useful as catalysts by formation of anhydrous adducts with particulate support materials in order to facilitate manipulation and storage. The adducts comprise a particulate support material and a hygroscopic salt of a species of formula R sR sR sR sN, R sR sR sR sP, R sR sR sR sAs, wherein R1-R4 which may be identical or different represent hydrogen or alkyl or aryl groups, or of Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, Cu, Ag, Zn, Cd, Au, Hg, Ga, In, Tl, Sn, Sb or Pb, the salt anion being fluoride, bromide, chloride, sulphate, nitrate, nitrite, cyanate, thiocyanate, peroxide, hydroxide, acetate, formate or comprises phosphorus and oxygen, the salt being coated on the support material thereby being rendered less hygroscopic; provided that when the species is Na, the anion is other than hydroxide and when the species is Tl the anion is fluoride, bromide or chloride. Adducts of salts useful in catalytic fluorination, e.g. R sR sR sR sN sF s and CsF are of especial interest.

Abstract translation: 通过与颗粒状载体材料形成无水加合物，以便于操作和储存，可用作催化剂的吸湿盐水的吸收稳定。 加合物包含颗粒状载体材料和具有式R s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s sP，R s s s s s s s s s s s s s s s其中可以相同或不同的R 1 -R 4表示氢或烷基或芳基，或者Li，Na，K，Rb，Cs， Be，Mg，Ca，Sr，Ba，Cu，Ag，Zn，Cd，Au，Hg，Ga，In，Tl，Sn，Sb或Pb，盐阴离子为氟，溴，氯，硫酸根，硝酸根，亚硝酸根， 氰酸盐，硫氰酸盐，过氧化物，氢氧化物，乙酸盐，甲酸盐或包含磷和氧，所述盐被涂覆在载体材料上，从而变得较少吸湿性; 条件是当物种为Na时，阴离子不是氢氧化物，当物质为T1时，阴离子是氟化物，溴化物或氯化物。 用于催化氟化的盐的加合物，例如 特别感兴趣的是，S sR sR sN s + sF s-s和CsF。

公开(公告)号：WO1979000521A1

公开(公告)日：1979-08-09

申请号：PCT/GB1979000014

申请日：1979-01-17

Applicant: NAT RES DEV CORP ,  CRISP S ,  WILSON A

Inventor： NAT RES DEV CORP

IPC: C08L33/02

CPC classification number: C04B28/28 ,  A61K6/0835 ,  A61L15/12 ,  A61L27/446 ,  C08K3/00 ,  C08L33/02

Abstract: Compositions which are hardenable in the presence of water to form a poly (carboxylate) cement contain a metal salt which accelerates the setting of the composition.

Abstract translation: 在水存在下可硬化以形成聚（羧酸盐）水泥的组合物含有加速组合物凝固的金属盐。