Patents Assigned to University of Newcastle
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Patent number: 6720017Abstract: A method for reducing the rate of deterioration of perishable horticultural produce by causing the horticultural produce to be treated post harvest with nitric oxide in an amount and for a period of time sufficient to reduce the rate of deterioration of the horticultural produce.Type: GrantFiled: June 5, 2000Date of Patent: April 13, 2004Assignees: Bar-Ilan University, The University of Newcastle Research Associates LimitedInventors: Ron Wills, Ya'Acov Leshem
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Patent number: 6711596Abstract: A logarithmic arithmetic apparatus for enabling a microprocessor to determine the approximate value of a logarithmic function F(x) at a value of x of interest is disclosed. The apparatus includes look up tables (104 to 107) for storing and simultaneously accessing values of the function and its derivative for discrete values of x, an error between the value of the function and the value extrapolated from the derivative for discrete values of x, and a ratio function for determining the proportion of this error across an interval between two adjacent discrete values of x. The apparatus is also provided with multipliers (108, 109) and adder stages (110 to 112). The apparatus enables many logarithmic arithmetic functions to be determined accurately without significantly increasing the necessary capacity of the look up tables (104 and 105), and without significantly decreasing the speed of calculation.Type: GrantFiled: November 13, 2000Date of Patent: March 23, 2004Assignee: University of Newcastle Upon TyneInventor: John Nicholas Coleman
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Patent number: 6477463Abstract: A navigation and routing system for a domain to be navigated and including a plurality of nodes comprising, at each node, a passive element the identity of which is unique to the address of the associated node, and an active navigation device programmed with an electronic map of the domain and capable of receiving information from the passive elements, the arrangement being such that, for any given destination within the domain, and on reading of the passive element at a first node by the navigation device, routing information is displayed by the navigation device to direct the user to the next node in the route leading to his destination.Type: GrantFiled: February 12, 2001Date of Patent: November 5, 2002Assignee: The University of Newcastle Upon TyneInventor: Neil Douglas Hamilton
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Patent number: 6048091Abstract: An atmometer includes a chamber having arranged in an interior region thereof a medium in fluid communication with a liquid source and adapted for releasably retaining liquid. The chamber also has at another region an opening to the surrounds over which a gas permeable medium is arranged. In one mode of use, the atmometer is positionable such that ambient air moving over the gas permeable medium causes at least a portion of any evaporated liquid in the chamber to diffuse through the gas permeable medium.Type: GrantFiled: September 22, 1997Date of Patent: April 11, 2000Assignee: The University of Newcastle Research Associates LimitedInventors: Graeme N. McIntyre, Herbert Bruce Penfold, Gary Douglas Worth, Franz Holawe
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Patent number: 5980155Abstract: The invention relates to a novel geosynthetic which in a first embodiment comprises a composite geosynthetic comprising reinforcement material embedded in a drainage material; and in the second embodiment of the invention there is provided an electrically conducting geosynthetic which may be used in isolation or which may, alternatively, form a part of the composite geosynthetic.Type: GrantFiled: November 19, 1996Date of Patent: November 9, 1999Assignee: University of Newcastle Upon TyneInventors: Colin John Jones, Kjell Eng
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Patent number: 5754757Abstract: This invention relates to a computing system, a fail-silent node for use in a computing system and a method of organizing information so that a number of microprocessors in a computing node, which are arranged to receive messages from other components in the computing system and to process the received messages so as to transmit the results of this processing to other components in the system, compare the results of their processing and send nothing out from the node unless either all the microprocessors in the mode produce identical results or more than half of the microprocessors in the node produce identical results. This is achieved by manipulating the order in which messages are processed by each microprocessor so as to ensure that each microprocessor in the node receives the same messages, orders these same messages so that messages within each microprocessor are processed in the same order, thus ensuring, if all the microprocessors are functioning correctly, that the same results are produced.Type: GrantFiled: June 23, 1995Date of Patent: May 19, 1998Assignee: The University of Newcastle Upon TyneInventors: Santosh Kumar Shrivastava, Neil Alexander Speirs, Sha Tao, Paul Devadoss Ezhilchelvan, Francisco Vilar Brasileiro
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Patent number: 5643577Abstract: Red blood cells or derivatives thereof such as ghost preparations can act as a potent carrier for orally administered antigens. Mucosal immunity in particular can be effectively induced against such viruses as influenza when adsorbed to chicken red blood cells and orally administered.Type: GrantFiled: October 23, 1992Date of Patent: July 1, 1997Assignee: The University of Newcastle Research Associates LimitedInventors: Gerald Toh Pang, Robert Llewellyn Clancy
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Patent number: 5535893Abstract: Method and apparatus for the separation of particles from a particulate suspension. The apparatus comprises a rotating flotation drum (10) with a feed distribution chamber (13). Particulate suspension feed enters the chamber through a delivery pipe (20). The feed passes through holes (21) into the particle collection chamber (22). Air is passed into the particulate suspension through a porous inner wall (29) and a froth is generated. The froth and particulate suspension pass into a froth cleaning chamber (32). The froth is washed by being sprayed from a washwater distribution pipe (47). Froth is removed from the drum by a froth scraper (49) through a froth removal chute (50). Unfrothed particulate suspension passes through openings (40) into a weir chamber (41) and is removed through a launder (45).Type: GrantFiled: November 10, 1994Date of Patent: July 16, 1996Assignee: University of Newcastle Research Associates Ltd.Inventor: Graeme J. Jameson
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Patent number: 5527434Abstract: Provided is a method for preparing a conductive polymer which is highly transparent to visible light in at least one of its conductive and non-conductive states. A solution containing a monomer component and an electrolyte is introduced into an electrochemical cell and subjected to polymerization by cyclic voltammetry. The solution is maintained at a temperature within a range of from 0.degree. to -40.degree. C. inclusive. Prior to the polymerization, cyclic voltammetry is firstly performed at a potential below that at which anodic or cathodic polymerization may take place, anodic and cathodic limits (A) and (B) being held at respective values. A trace of current/voltage is monitored until the trace becomes stable, and thereafter the value of the limit (B) is progressively increased until the said value reaches a critical potential having a magnitude at which anodic or cathodic polymerization is initiated.Type: GrantFiled: July 18, 1994Date of Patent: June 18, 1996Assignee: The University of Newcastle Upon TyneInventors: Andrew Hamnett, Paul A. Christensen, Daniel C. Read
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Patent number: 5188726Abstract: A method of operating a plurality of minerals separation flotation cells (1,2) each having a feed inlet (9,14) a values outlet (11) and a gangue outlet (12,15), and each flotation cell being located at substantially the same level. A feed box (3) is located alongside the flotation cells (1,2) which are connected in series such that the outlet (7) from the feed box (3) is connected via a first pump (8) to the feed inlet (9) of a first flotation cell (1), the gangue outlet (12) from the first flotation cell (2) is connected via a second pump (13) to the feed inlet (14) of the next flotation cell (2), and so on until all of the flotation cells are connected in series. Each flotation cell also has a recycle outlet (19) from the lower part of the flotation cell arranged to return a predetermined proportion of the material flowing through that flotation cell to the feed box (3).Type: GrantFiled: May 3, 1991Date of Patent: February 23, 1993Assignee: University of Newcastle Research Associates Ltd.Inventor: Graeme J. Jameson
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Patent number: 4938865Abstract: A method and apparatus for the benefication of mineral ores by the flotation method whereby a slurry is introduced under pressure into the top of a first column through a downwardly facing nozzle, and air is entrained into the slurry forming a downwardly moving foam bed in the first column. The foam bed passes from the bottom of the first column into a second column where the froth and liquid separate, the froth carrying the values floating upwardly and over a weir and the liquid being drained with the gangue. The liquid/froth interface level in the second column is kept above the bottom of the first column, and the air flow rate into the top of the first column is controlled to keep the first column substantially full of foam.Type: GrantFiled: September 25, 1987Date of Patent: July 3, 1990Assignee: University of Newcastle Research Assoc., Ltd.Inventor: Graeme J. Jameson
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Patent number: 4701381Abstract: Composite materials and products are described composed of a mixed metal interstitial alloy in the form of a carbide, nitride, carbonitride, oxynitride, oxycarbide or carboxynitride with the .beta..sup.m (.beta.-manganese) metal-atom arrangement, and a metallic carrier. With the carrier in the form of a binder phase for particles of the alloy a hard metal can be obtained which has a hardness not much less than a conventional WC-Co hard metal. Alternatively the alloy can be employed as a coating for a metallic substrate, for example to increase resistance to corrosion and oxidation. In a preferred composition, the interstitial alloy is nickel-molybdenum-nitride and nickel is used as the binder or the substrate material.Type: GrantFiled: July 18, 1985Date of Patent: October 20, 1987Assignee: The University of Newcastle Upon TyneInventor: Kenneth H. Jack
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Patent number: 4317286Abstract: An apparatus for use in photogrammetry is disclosed having two spaced-apart parallel scanning zones to which the photographs of a stereoscopic pair of photographs are mounted.A carriage mounted optical scanning system is provided for scanning the two scanning zones and for projecting images of the respective zones to a binocular viewing system, and a secondary optical system is provided, preferably on the carriage, for superimposing reference marks on the projected images.The scanning system is arranged in such a manner that simultaneous scanning of the two scanning zones can be effected in a first direction parallel to the scanning zones, and independent scanning of the two scanning zones can be effected in a second direction which is parallel to the scanning zones and orthogonal to the first direction. Also, the apparatus is adapted to permit relative scanning of the two scanning zones in the first direction or for optically moving the reference marks relative to one another in the first direction.Type: GrantFiled: December 5, 1979Date of Patent: March 2, 1982Assignee: The University of Newcastle Research Associates Ltd.Inventors: Michael H. Elfick, Michael J. Fletcher