Abstract: An RF receiver coil structure for NMR imaging of cardiac and thoraco-abdominal regions of a human body. The coil structure includes a coil of generally solenoidal geometry having two turns separated by an inter-element gap. The inter-element gap is sufficiently large to accommodate an average human torso at the chest level (e.g. 25 cm). The turns are cross coupled by a pair of crossed diagonal elements. The coil is formed of a tubular conductor, having a tubular diameter (outside diameter) of approximately 1/2 inch. The coil has terminal ends in one of its diagonal elements, and the coil structure further includes a component unit located where the diagonal elements cross. The component unit includes a capacitor electrically connected to the coil to form a parallel resonant circuit. The same geometry may be employed in a multi-turn structure, where preferably one-half of the total number of turns are positioned above the patient, and the other half below the patient.

Abstract: Structures for providing a stable platform in or above the water and capable of surviving extreme environmental conditions and of minimizing risk and damage to itself and to vessels in the event of a collision. A disclosed structure includes a base mooring element fixed to the seafloor, a positively buoyant column having a base end and an opposite end, at least one articulated joint between the column base end and the base mooring element permitting pivotal movement of the column, and at least one elastic element connected to the column for urging the column towards an equilibrium position and for providing a restoring force following displacements of the column from the equilibrium position. Significantly, buoyancy primarily serves the function of returning the column to a vertical or near-vertical position to facilitate location and repair in the event an elastic element is broken.

Abstract: A highly efficient light emitting semiconductor device which is stable at high speeds and has a low threshold current comprising a first semiconductor layer of a first conductive type; a second semiconductor layer of the second conductive type which is different from the first conductive type; an active layer composed of laminated semiconductor layers of the quantum well structure interposed between the first and second semiconductor layers and having a narrower effective energy band gap than the first and second semiconductor layers and a diffraction grading formed in either one of the first or second semiconductor layers.

Abstract: The method of beneficiating a phosphate ore comprising apatite and including dolomitic impurities comprising reagentizing the ore having a particle size in the range of 75 .mu.m to about 420 .mu.m with an aqueous solution having a pH of from 3.5 to 4.5 and containing a fatty acid anionic collector and sodium chloride and subjecting the ore to froth flotation to float away the dolomitic impurities.

Abstract: An optical fibre is provided with a coating by coating the fibre (1) with a coating material (4) on-line with the fibre drawing process (2) and employing a laser beam (6) to locally heat the coating material whereby to change its physical or chemical properties. Metallic glass coated fibres, useful for hermeticity and sensor applications, can thus be achieved in multikilometer lengths by fusing metallic glass forming alloy coatings to a fibre. Alternatively, polymer coatings may be cured by laser beam local heating.

Abstract: An electrochemical gas sensor for detecting the amount of a gas or vapor in an atmosphere is described having a sensing electrode and a barrier limiting the rate of access of the gas or vapor to the sensing electrode, the barrier being made of ceramics material and having an inwardly-tapering shape.

Abstract: A sequential decorrelator arrangement for an adaptive antenna array comprising a plurality of antenna elements the outputs of which feed a cascaded beamforming network having a succession of stages, each stage having one less decorrelation cell than the preceding stage and the first stage having one less cell than the number of antenna elements.The network includes means for applying weighting to the signals applied as inputs to the cells of at least the first stage. The decorrelation cells in each stage comprise means for applying simple rotational transforms to the input data in accordance with a weighting factor common to all the cells in a stage, each stage further including means for deriving said weighting factor from the weighting factor deriving means of the previous stage and the output of one cell of the preceding stage. Each stage includes means for scaling the output of each cell in the stage by a scaling factor calculated from the weighting factor deriving means of the stage.

Abstract: A method for modifying a PMMA surface by the gamma-irradiation induced polymerization thereon of N-vinylpyrrolidone, 2-hydroxyethylmethacrylate or a mixture thereof while maintaining the following conditions:(a) monomer concentration in the range of from about 0.5% to about 50%, by weight;(b) total gamma dose in the range of from about 0.01 to less than about 0.50 Mrad;(c) gamma dose rate in the range of from about 10 to about 2500 rads/minute; and(d) maintaining the molecular weight of the polymer in solution in the range of from about 250,000 to about 5,000,000.The invention also relates to modifying polypropylene, polyvinylidene fluoride, polycarbonate and silicon surfaces according to a similar method as well as materials produced by the above methods which are useful as ocular implants.

Abstract: The present invention relates to pharmaceutical compositions and methods for the treatment of metabolic disorders and to certain inositol-nicotinate dichloroacetate derivatives as the active ingredients therein.

Abstract: The discovery presented herewith concerns a pharmaceutical product in the form of a pellet with improved continous, delayed medicament substance emission through a coating, which is made of a material that does not dilute in gastric and intestinal juices and which is impermeable for gastric and intestinal juices and which tightly seals the core made of material that is dilutable in gastric and intestinal juices.

Abstract: Voice and data signals can be transmitted simultaneously yet independently over a subscriber telephone line. The speech and data use the same cable pair as far as the local exchange but thereafter they may be routed to the same destination or to different destinations, as desired. Each terminal unit (A or B) has a low pass filter (2) to isolate the voice and data. A data switch (5) switches an oscillator (6) by FSK. Switch (7) locks onto the Data Ready Interface (8). Bandpass filter (9) feeds the signal to the telephone line. A loop back switch LBS provides for testing from the exchange.

Abstract: A hydrocarbon conversion process is disclosed using a catalyst prepared by a method comprising reacting an adsorbent containing surface hydroxyl groups with a Lewis acid in a halogenated organic solvent.

Abstract: Fibrinogen degradation product pentapeptide 6A and its variants are used in the treatment of thrombi, in particular myocardial infarcts. In a preferred embodiment pentapeptide 6A and tissue plasminogen activator are administered together to enhance the thrombolytic activity of tissue plasminogen activator.

Abstract: Apparatus for measuring flow rate and flow direction of a fluid comprises an elongated stem coaxially disposed and supported within an elongated housing, a small diameter spherical probe connected to an end of the stem which projects through an opening in the housing for transmitting to the stem forces exerted on the probe by the flowing fluid, and a sensor for detecting the forces transmitted to the stem and for producing electrical signals representative of a measurement of the flowing fluid. The apparatus may detect forces exerted on the probe in one, two or three orthogonal directions, thereby providing output signals corresponding to the components of a vector representation of the fluid flow.

Abstract: A transplanter machine rotates seedling plants from a horizontal file to a vertical orientation by use of a plant holder which has a dwell when in a loading position. The plant holder will accelerate the seedling plants from a relatively low velocity to a velocity that is matched to the machine travel speed such that the plant is inserted into the ground at a zero velocity relative to the ground. The plant holders are mounted upon holder arms which are pivotably connected to a rotating hub. Each holder arm is connected to a link which causes the holder arm to fold and unfold as the plant holder travels in a path about a rotation axis.

Abstract: The invention provides a method for relieving anxiety in a mammal using a compound of the formula ##STR1## wherein R is Benzyl or cyclohexyl, or a non-toxic pharmaceutically acceptable salt thereof. A preferred compound for use in the subject method is 1-methyl-3-{N-[(3'-benzyloxycarbonyl)propyl]}carbamoyl-1,4-dihydropyridine .

Abstract: An RF receiver coil structure for NMR imaging of a human head attached by a neck to a body (normally lying horizontally), having ear positions, and having a defined axis generally along a line extending from the top of the head through the neck. The coil lies primarily in a coil plane which is horizontal, and thus is properly oriented with reference to the main field orientation of an NMR system. The coil is generally oval in configuration, having sides and defined upper and lower ends spaced by an oval height. The coil is sized for positioning around the head oriented such that the coil upper end is adjacent to the top of the head, the coil sides are generally adjacent to the ear positions, and the defined head axis lies in the defined coil plane.

Abstract: A resonant element force transducer comprising a doubled back beam comprising a single transducer element having a crossmember to one side of which there extends integrally formed therewith at least a pair of coplanar outer beams of substantially equal length and at least one inner beam coplanar with and disposed between the outer beams in substantially parallel fashion, the free ends of the outer beams being coupled to one of a first mounting pad and a second mounting pad, the free end of the at least one inner beam being coupled to the other of the first and second mounting pads.

Abstract: A weightlifting exercise apparatus is provided having a first and second beam member, the second beam member being selectively positionable in a longitudinal sense relative to said first beam member to provide a substantially continuous range of selectable exercise loads, ranging from a relatively large load to a very small load, as second beam member in some positions will act as a counterbalance to a primary load provided by the first beam member, and in other positions will supplement the exercise load provided by the first beam member; the apparatus further having a releaseable lock whereby the second beam member can be retained in a selected position.