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：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：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。

公开(公告)号：WO1982003411A1

公开(公告)日：1982-10-14

申请号：PCT/GB1982000095

申请日：1982-03-24

Applicant: NAT RES DEV CORP ,  HOSELITZ KURT

Inventor： NAT RES DEV CORP

IPC: C22C38/02

CPC classification number: C22C45/02 ,  H01F1/15308

Abstract: An alloy of composition (by mole) around Fe80B15Si5 with additions of up to 4 mole % Ag or Cu or up to 2% Zn or mixtures thereof when rapidly cooled solidifies to a non-crystalline glass structure, which is ductile and magnetically "soft", i.e. offering a reasonable saturation magnetisation yet with low losses. Exemplary glassy alloy: Fe79.5B15Si5Cu0.5.

Abstract translation: 在Fe80B15Si5周围的组合物（摩尔）的合金，当加速高达4摩尔％的Ag或Cu或至多2％的Zn或其混合物时，迅速冷却固化成非结晶玻璃结构，其为延性和磁性“软” ，即提供合理的饱和磁化，但具有低损耗。 示例性玻璃态合金：Fe79.5B15Si5Cu0.5。

公开(公告)号：WO1982003090A1

公开(公告)日：1982-09-16

申请号：PCT/GB1982000068

申请日：1982-03-03

Applicant: NAT RES DEV CORP ,  JAMES RICHARD

Inventor： NAT RES DEV CORP

IPC: C12Q01/34

CPC classification number: C12Q1/04 ,  C12Q1/18 ,  C12Q1/34 ,  G01N33/04 ,  G01N2333/986 ,  G01N2415/00

Abstract: Procede d'identification de beta-lactamases en controlant specifiquement les reactions de concurrence entre un substrat chromogene, par exemple la nitrocefine, et divers substrats en concurrence, de preference certains des beta-lactames les plus recents, par exemple la cefoxitine, le moxalactame, MK 0787 etc. Une etude detaillee de ces reactions par l'inventeur a revele des variations accentuees auxquelles on ne s'attendait pas dans la reactivite (affinite) de ces enzymes pour les differents beta-lactames. Sur cette base l'invention fournit un test d'analyse pour l'identification des beta-lactamases'inconnues'basee sur la comparaison de leur comportement dans la reaction de concurrence avec des donnees d'affinite sur des beta-lactamases connues. Le substrat chromogene et une selection des beta-lactames les plus utiles sont fournis sous forme de 'kit'. Il peut contenir des melanges prepares des beta-lactames et du substrat chromogene. Le test d'analyse peut s'effectuer visuellement en utilisant des plaques de micro-titrage et un simple systeme de comptage ou plus quantitativement par analyse spectro-photometrique. Il peut etre utilise pour l'identification rapide des beta-lactamases dans un laboratoire d'hopital ou pour l'identification des bacteries gram-negatives basees sur les beta-lactamases qu'elles produisent.

公开(公告)号：WO1981001657A1

公开(公告)日：1981-06-25

申请号：PCT/GB1980000215

申请日：1980-12-12

Applicant: NAT RES DEV CORP ,  TURNER R ,  HOLMAN R

Inventor： NAT RES DEV CORP

IPC: A61M05/28

CPC classification number: A61M5/283 ,  A61M5/3202

Abstract: A syringe is provided comprising a barrel (10) open at one end, a piston (20) sealably located in the barrel and being partly formed by a membrane (23), a plunger (30) slidable into the barrel to engage and move the piston, and a needle (40) projecting through the plunger into and out of the barrel. A material to be dispensed is located between the barrel and piston, and plunger movement causes the needle to pierce the membrane and also causes the piston to move to eject material through the needle. Preferably a protective cap (50) is connected with the barrel to cover the plunger/needle projection. Typically the dispensed material is pharmaceutical and it can be maintained sterile by suitable sealing of the piston and/or cap with the barrel. The plunger can interlock with the piston to allow withdrawal movement useful in intravenous injection. Also the barrel closed end can include another membrane (62) allowing mixture of another material, such as a solvent or diluent liquid.

Abstract translation: 提供了一种注射器，其包括在一端开口的筒体（10），可密封地定位在筒体中并由薄膜（23）部分地形成的活塞（20），可滑入筒体中的活塞（30） 活塞以及通过柱塞伸入和移出筒体的针（40）。 要分配的材料位于筒体和活塞之间，并且柱塞移动导致针刺穿膜并且还使活塞移动以通过针喷射材料。 优选地，保护盖（50）与筒连接以覆盖柱塞/针突起。 通常，所分配的材料是药物，并且可以通过活塞和/或盖与筒的适当密封来保持无菌。 柱塞可以与活塞互锁，以允许静脉注射中有用的抽出运动。 筒封闭端也可以包括允许混合其它材料例如溶剂或稀释液的另一膜（62）。

公开(公告)号：WO1980002671A1

公开(公告)日：1980-12-11

申请号：PCT/GB1980000099

申请日：1980-06-06

Applicant: NAT RES DEV CORP ,  WARD I ,  GIBSON A ,  COATES P

Inventor： NAT RES DEV CORP

IPC: B29C17/02

CPC classification number: B29C67/00 ,  B29C47/00 ,  B29C47/0023 ,  B29C47/0026 ,  B29C47/0038 ,  B29C47/0057 ,  B29C47/02 ,  B29C55/30 ,  B29K2023/00 ,  B29K2027/12 ,  B29K2059/00 ,  B29K2061/00 ,  B29L2023/22

Abstract: Oriented thermoplastics having enhanced properties such as Young's modulus, resistance to creep, resistance to gas transport are prepared by drawing the thermoplastic in the solid phase through a die so that its plastic strain is progressively increased during start-up.