Meredith
Andrew Meredith, Cambridge GB
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20100050761 | DETECTING GAS COMPOUNDS FOR DOWNHOLE FLUID ANALYSIS - A gas separation and detection tool for performing in situ analysis of borehole fluid is described. A separation system such as a membrane is employed to separate one or more target gasses from the borehole fluid. The separated gas may be detected by reaction with another material or spectroscopy. When spectroscopy is employed, a test chamber defined by a housing is used to hold the gas undergoing test. Various techniques may be employed to protect the gas separation system from damage due to pressure differential. For example, a separation membrane may be integrated with layers that provide strength and rigidity. The integrated membrane separation may include one or more of a water impermeable layer, gas selective layer, inorganic base layer and metal support layer. The gas selective layer itself can also function as a water impermeable layer. The metal support layer enhances resistance to differential pressure. Alternatively, the chamber may be filled with a liquid or solid material. | 03-04-2010 |
20110220358 | ASSEMBLIES FOR THE PURIFICATION OF A RESERVOIR OR PROCESS FLUID - A sugar-based assembly is provided for the removal of a component from a reservoir or process fluid. The sugar-based assembly comprises a sugar optionally bound to a support, and where the support is present, the sugar is bound directly to the support or via a linker group, and the use of the sugar-based assembly in methods of purification of reservoir or process fluids, including subterranean reservoir and process fluids. | 09-15-2011 |
20110240287 | DETECTION OF TRACERS USED IN HYDROCARBON WELLS - In an arrangement for monitoring of flow within a hydrocarbon well or reservoir by means of one or more tracers which are placed at subterranean locations such that they may be present in flow produced from the well, the analysis of the flow produced from the well is carried out using an electrochemical method, preferably voltammetry, to detect tracer chosen to undergo a detectable electrochemical reaction. The tracer may be provided as nanoparticles in the well fluid. | 10-06-2011 |
20120064632 | ELECTRO-CHEMICAL SENSOR - The present invention provides an electrochemical sensor having a solid electrically conductive substrate and a compound immobilized thereon which has binding affinity for an analyte species to be detected and also displays electrochemical behaviour which is modified upon binding of that analyte species, so that binding of an analyte species can be detected by measuring electrochemical properties, such as by voltammetry. Desirably the immobilised compound contains both a first moiety with binding affinity for the analyte and a separate second moiety which is a redox system whose electrochemical oxidation/reduction properties become modified when the first moiety binds the analyte. The analyte binding moiety may be a diol or polyol and preferably is a sugar. The electrochemical sensor finds use in methods of analysing reservoir and process fluids, particularly at a subterranean location. The electrochemical sensor may be a component of a downhole tool, adapted for deployment downhole. | 03-15-2012 |
20120132544 | ELECTROCHEMICAL SENSOR - An electrochemical sensor for measuring an analyte in a fluid, the electrochemical sensor having a first working electrode that includes a redox species sensitive to the analyte to be measured and a second working electrode made from a conducting substrate absent the redox species. The electrochemical sensor being capable of operation so that electrochemical effects of active contaminants in the fluid can be removed/attenuated from electrochemical signals produced by the reduction/oxidation of the redox species in the presence of the analyte. | 05-31-2012 |
20120137764 | Detecting Gas Compounds For Downhole Fluid Analysis - A gas separation and detection tool for performing in situ analysis of borehole fluid is described. The tool comprises a sampling chamber for a downhole fluid. The sample chamber comprises a detector cell with an opening. The tool also comprises a gas separation module for taking a gas from the downhole fluid. The gas separation module comprises a membrane located in the opening, a support for holding the membrane, and a sealant applied between the housing and the membrane or support. Moreover, the tool comprises a gas detector for sensing the gas. | 06-07-2012 |
20120279874 | ELECTROCHEMICAL PH MEASUREMENT - A method of measuring pH of aqueous liquid with little or no buffer present uses an electrochemical pH sensor which comprises a plurality of electrodes with a redox active organic compound attached to an electrode and having at least one functional group convertible electrochemically between reduced and oxidized forms with transfer of at least one proton between the compound and surrounding aqueous phase, wherein the compound has at least one substituent group which promotes hydrogen bonding at a said functional group and thereby increases the reaction rate of proton transfer. The substituent group may form an internal hydrogen bond with a redox-convertible group or may enhance polarity to promote electrostatic interaction with water molecules and reduce activation energy. Such an electrochemical sensor may be used for pH measurement in computer controlled equipment for processing an aqueous liquid. | 11-08-2012 |
20130256133 | ELECTROCHEMICAL SENSOR - A voltammetric pH sensor, especially for characterising wellbore fluids, comprises a plurality of electrodes with a redox active organic compound attached to an electrode and having at least one functional group convertible electrochemically between reduced and oxidized forms with transfer of at least one proton between the compound and surrounding aqueous phase, wherein the compound has at least one substituent group which promotes hydrogen bonding at a said functional group and thereby increases the reaction rate of proton transfer. The substituent group may form an internal hydrogen bond with a redox-convertible group or may enhance polarity to promote electrostatic interaction with water molecules and reduce activation energy. Typical examples include alizarin or 1,2-dihydroxy-anthraquinone (RH=72-48-0), quinizarin or 1,4-dihydroxy-anthraquinone (RN=81-64-1), 2-acetoxy-benzoquinone (RN=1125-55-9), chloranil or 2,3,4,5-tetrachloro-benzoquinone (RN=118-75-2) and 1,4-diamino-2,3-dichloro-anthraquinone (RN=81-42-5) deposited on a glassy carbon electrode. In this way, anomalous measurements at low ionic strength and low concentrations of pH buffering species can be overcome. | 10-03-2013 |
20140060840 | ALTERING A COMPOSITION AT A LOCATION ACCESSED THROUGH AN ELONGATE CONDUIT - A composition flowing along an elongate conduit to a location accessed by that conduit contains a precursor substance which, arriving at the location, is converted electrochemically to chemically reactive intermediate. This intermediate reacts with another constituent of the composition, thereby bringing about a change in the composition. The reactive intermediate may be a cross-linking agent for a polymeric constituent of the composition so that the electrochemical reaction and subsequent cross-linking increases the viscosity of the composition as it arrives at the location where it is required. | 03-06-2014 |
20140246315 | EROSION AND WEAR RESISTANT SONOELECTROCHEMICAL PROBE - The present invention, in one set of embodiments, provides methods and systems for integrating conducting diamond electrodes into a high power acoustic resonator. More specifically, but not by way of limitation, in certain embodiments of the present invention, diamond electrodes may be integrated into a high power acoustic resonator to provide a robust sensing device that may provide for acoustic cleaning of the electrodes and increasing the rate of mass transport to the diamond electrodes. The diamond electrodes may be used as working, reference or counter electrodes or a combination of two or more of such electrodes. In certain aspects, the high power acoustic resonator may include an acoustic horn for focusing acoustic energy and the diamond electrodes may be coupled with the acoustic horn. | 09-04-2014 |
20140332411 | ELECTROCHEMICAL SENSOR FOR PH MEASUREMENT - A method of determining the pH of an aqueous liquid which contains little or no buffer, such as does not contain more than 0.01 moles per litre of pH-buffering partially dissociated acid, base and/or salt, uses an electrode with at least one redox active compound immobilized thereon convertible electrochemically between reduced and oxidized forms with transfer of at least one proton between the compound and the aqueous liquid. Varying potential is applied to the electrode, observing current flow as potential is varied, determining the applied potential at a maximum current for redox reaction of the compound, and determining pH from the potential at maximum current. The electrode has a covering layer which separates the redox active compound from the aqueous liquid but selectively allows the passage of hydrogen ions between the redox active compound and the aqueous liquid. The presence of the covering layer enhances accuracy of the measurement of pH of the aqueous liquid. | 11-13-2014 |
20140367277 | ELECTROCHEMICAL SENSORS - An electrochemical sensor incorporates a ferrocenophane which is a compound with at least one bridging group covalently attached to and connecting the two cyclopentadiene rings associated with the same iron atom. This bridging group maybe tetramethylene. As compared to an equivalent sensor with ferrocene, the tolerance of elevated temperature is improved and so is the working life at ambient temperature. | 12-18-2014 |
20150122487 | Downhole Electrochemical Sensor and Method of Using Same - An electrochemical sensor of a downhole tool positionable in a wellbore penetrating a subterranean formation is provided. The downhole tool has a flowline to receive downhole fluid. The electrochemical sensor includes a bulkhead carried by the downhole tool, a membrane exposed to the downhole fluid in the flowline, and an electrochemical cell supported by the bulkhead about the membrane. The electrochemical cell includes a plurality of cell sensors, at least one cell electrode, and a sensing solution. The plurality cell sensors include an analyte sensor, a temperature sensor, and a pH sensor. The sensing solution is reactive to certain analytes in the downhole fluid to generate electrical signals measurable by the plurality of cell sensors whereby parameters of chemicals in the downhole fluid may be measured. | 05-07-2015 |
20160033446 | Devices and Methods for Measuring Analyte Concentration - Disclosed herein are devices and methods for the detection, quantification and/or monitoring of analytes. The systems and methods can be used, for example, to rapidly monitor gases downhole in a well. | 02-04-2016 |
20160041120 | Devices and Methods for Measuring Analyte Concentration - Provided herein are devices and methods for reducing the negative effects of bubble formation on the detection, quantification and/or monitoring of analytes. | 02-11-2016 |
Andrew Meredith, Cambridgeshire GB
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20100163430 | EROSION AND WEAR RESISTANT SONOELECTROCHEMICAL PROBE - The present invention, in one set of embodiments, provides methods and systems for integrating conducting diamond electrodes into a high power acoustic resonator. More specifically, but not by way of limitation, in certain embodiments of the present invention, diamond electrodes may be integrated into a high power acoustic resonator to provide a robust sensing device that may provide for acoustic cleaning of the electrodes and increasing the rate of mass transport to the diamond electrodes. The diamond electrodes may be used as working, reference or counter electrodes or a combination of two or more of such electrodes. In certain aspects, the high power acoustic resonator may include an acoustic horn for focusing acoustic energy and the diamond electrodes may be coupled with the acoustic horn. | 07-01-2010 |
Anna Meredith, Vancouver CA
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20110189680 | Methods of Diagnosing Rejection of a Kidney Allograft Using Genomic or Proteomic Expression Profiling - A method of determining the acute allograft rejection status of a subject, the method comprising the steps of: determining the nucleic acid expression profile of one or more than one nucleic acid markers, or one or more than one proteomic markers in a biological sample from the subject; comparing the expression profile of the one or more than one nucleic acid markers to a control profile; and determining whether the expression level of the one or more than one nucleic acid markers is increased relative to the control profile, wherein the increase of the one or more than one nucleic acid markers is indicative of the acute rejection status of the subject. | 08-04-2011 |
Christopher Meredith, Whitley, Coventry, Warwickshire GB
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20150291126 | VEHICLE ACCESS SYSTEM AND METHOD - The present invention relates to a vehicle access system ( | 10-15-2015 |
James O. Meredith, Hampshire GB
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20120253079 | Use Of Steam To Reduce Coking And/Or Metal Dusting - The invention is directed towards the reduction of coke formation in furnaces. | 10-04-2012 |
James O. Meredith, Glos GB
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20090155334 | IMPLANT FOR TISSUE ENGINEERING - The invention provides a process for the production of a monolithic implant for use in tissue engineering, the process comprising the steps of plasticising at least one biocompatible material into a paste, extruding the paste through a die, and drying the extruded material to eliminate an aqueous and/or non-aqueous component. The invention also relates to a monolithic implant as thereby manufactured, and the use of such an implant as a scaffold for tissue-engineering and as a transplant tissue in reconstructive or replacement surgery. | 06-18-2009 |
James Oliver Meredith, Lymington GB
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20130211153 | System for Alcohol Production - The invention concerns a system and process for alcohol production. | 08-15-2013 |
Jason Meredith, Hemel Hempstead GB
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20140201452 | FILL PARTITIONING OF A SHARED CACHE - Fill partitioning of a shared cache is described. In an embodiment, all threads running in a processor are able to access any data stored in the shared cache; however, in the event of a cache miss, a thread may be restricted such that it can only store data in a portion of the shared cache. The restrictions to storing data may be implemented for all cache miss events or for only a subset of those events. For example, the restrictions may be implemented only when the shared cache is full and/or only for particular threads. The restrictions may also be applied dynamically, for example, based on conditions associated with the cache. Different portions may be defined for different threads (e.g. in a multi-threaded processor) and these different portions may, for example, be separate and non-overlapping. Fill partitioning may be applied to any on-chip cache, for example, a L1 cache. | 07-17-2014 |
20140258623 | MECHANISM FOR COPYING DATA IN MEMORY - An improved mechanism for copying data in memory is described which uses aliasing. In an embodiment, data is accessed from a first location in a memory and stored in a cache line associated with a second, different location in the memory. In response to a subsequent request for data from the second location in the memory, the cache returns the data stored in the cache line associated with the second location in the memory. The method may be implemented using additional hardware logic in the cache which is arranged to receive an aliasing request from a processor which identifies both the first and second locations in memory and triggers the accessing of data from the first location for storing in a cache line associated with the second location. | 09-11-2014 |
20140325159 | CONTROL OF PRE-FETCH TRAFFIC - Methods and systems for improved control of traffic generated by a processor are described. In an embodiment, when a device generates a pre-fetch request for a piece of data or an instruction from a memory hierarchy, the device includes a pre-fetch identifier in the request. This identifier flags the request as a pre-fetch request rather than a non-pre-fetch request, such as a time-critical request. Based on this identifier, the memory hierarchy can then issue an abort response at times of high traffic which suppresses the pre-fetch traffic, as the pre-fetch traffic is not fulfilled by the memory hierarchy. On receipt of an abort response, the device deletes at least a part of any record of the pre-fetch request and if the data/instruction is later required, a new request is issued at a higher priority than the original pre-fetch request. | 10-30-2014 |
20150058574 | Increasing The Efficiency of Memory Resources In a Processor - Methods of increasing the efficiency of memory resources within a processor are described. In an embodiment, instead of including dedicated DSP indirect register resource for storing data associated with DSP instructions, this data is stored in an allocated and locked region within the cache. The state of any cache lines which are used to store DSP data is then set to prevent the data from being written to memory. The size of the allocated region within the cache may vary according to the amount of DSP data that needs to be stored and when no DSP instructions are being run, no cache resources are allocated for storage of DSP data. | 02-26-2015 |
Jason Meredith, Hemel Hempsted GB
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20110231588 | Requests and data handling in a bus architecture - The present invention relates to improved methods for processing requests and sending data in a bus architecture. The present invention further relates to an improved bus architecture for processing requests and data. There is provided a method for processing read requests in a bus architecture comprising at least one master device connected to at least two slave devices via a bus. The architecture comprises an allocator for allocating incoming requests from the master device to a target slave device and an optimiser for each slave device. Each optimiser is for buffering incoming requests for the respective slave device. The method comprising the steps of: a) the master device sending a read request for a first slave device to the bus; b) the allocator generating a current-state indicator associated with the read request. The current-state indicator has an initial value, The method further comprises c) the allocator generating a priority indicator associated with the read request; d) the allocator sending the read request, the current-state indicator and the priority indicator to the optimiser of the first slave device; e) the optimiser of the first slave device receiving the read request, the current-state indicator and the priority indicator. Finally, if the initial value of the current-state indicator equals the value of the priority indicator, the method comprises processing the read request; or if the initial value of the current-state indicator does not equal the value of priority indicator, the method comprises deferring processing of the read request until a later time. | 09-22-2011 |
20130007321 | REQUESTS AND DATA HANDLING IN A BUS ARCHITECTURE - Aspects relate to methods and systems for processing requests and sending data in a bus architecture. At least one master device is connected to at least two slave devices via a bus. An allocator allocates incoming requests from the master device to a target slave device. Incoming requests are buffered for the respective slave device. The master device sends a read request for a first slave device to the bus; the allocator generates a current-state indicator associated with the read request. The allocator generates a priority indicator associated with the read request. If the initial value of the current-state indicator equals the value of the priority indicator, the read request is processed; or if the initial value of the current-state indicator does not equal the value of priority indicator, the read request is deferred until a later time. | 01-03-2013 |
Lisa Meredith, Reading GB
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20140207451 | Method and Apparatus of Adaptive Textual Prediction of Voice Data - Typical textual prediction of voice data employs a predefined implementation arrangement of a single or multiple prediction sources. Using a predefined implementation arrangement of the prediction sources may not provide a good prediction performance in a consistent manner with variations in voice data quality. Prediction performance may be improved by employing adaptive textual prediction. According to at least one embodiment determining a configuration of a plurality of prediction sources, used for textual interpretation of the voice data, is determined based at least in part on one or more features associated with the voice data or one or more a-priori interpretations of the voice data. A textual output prediction of the voice data is then generated using the plurality of prediction sources according to the determined configuration. Employing an adaptive configuration of the text prediction sources facilitates providing more accurate text transcripts of the voice data. | 07-24-2014 |
Matthew David Meredith, Aberdeen GB
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20110089679 | METHOD AND APPARATUS FOR REPAIRING TUBULAR MEMBERS - The present invention provides an apparatus for repairing the outer sheath of a pipe, said apparatus comprising a sleeve ( | 04-21-2011 |
20110187056 | DUCT ASSESSMENT AND LEAK SEALING METHOD FOR DUCTS TRANSPORTING GAS - The present invention relates to a method of assessing the condition of a duct along which a gas is flowing. The method comprises producing one or more sensor carrying elements, wherein the elements are formed to have selected parameters; introducing the sensor carrying elements into the flowing gas; and selecting the parameters of the sensor carrying elements such that the elements are transported along the duct by saltation. The present invention also relates to a method of reducing leakage through a leak in the duct. In this respect, the method comprises producing sealing elements, wherein the sealing elements are formed to have selected parameters; introducing a plurality of the sealing elements into the flowing gas; and selecting the parameters of the sealing elements such that the elements are transported along the duct by saltation and such that, at the locality of the leak, at least one of said sealing elements is captured by a pressure differential associated with the leak and is thereby drawn to and held in position at the leak for stemming or sealing it. | 08-04-2011 |
Neil Meredith, Brisbane AU
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20120040102 | Surface Treatment Process for Implantable Medical Device - A surface treatment process for an implantable medical device including a surface dielectric insulating layer, the process comprising the application of ions onto said dielectric insulating layer, the ions being capable of forming an electrostatic charge and locally creating an electric field associated with at least part of the surface of said implantable medical device upon application of a liquid to said surface. | 02-16-2012 |
Neil Meredith, Harrogate GB
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20140172028 | SURFACE TREATMENT PROCESS FOR IMPLANTABLE MEDICAL DEVICE - A surface treatment process for improving the hydrophilicity of at least part of an implantable medical device. The process comprises applying to the surface of the implantable medical device a solution of a non-ionic substance having at least one polar covalently-bonded group and drying the implantable medical device to form a hydrophilic deposition of the substance on the surface of the implantable medical device. | 06-19-2014 |
Owen David Meredith, Cape Town ZA
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20160125409 | System and Method for Authorizing Direct Debit Transactions - A system and method for authorizing a direct debit transaction is provided. A remotely accessible server receives a request from a clearing entity to conduct a direct debit transaction against a financial account of a consumer on behalf of a merchant, and checks whether the consumer has previously approved a debit against the account on behalf of the merchant. If the consumer has previously approved a debit on behalf of the merchant, an authorization message is generated and transmitted to the clearing entity. If the consumer has not previously approved a debit on behalf of the merchant, an electronic prompt is generated to an electronic device of the consumer requesting the consumer to approve or deny the debit. In response to the consumer indicating approval, a debit authorization message is generated and transmitted to the clearing entity, and a database is updated to indicate approval by the consumer. | 05-05-2016 |
Patrick Meredith, Milton Keynes GB
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20140238425 | SMOKING ARTICLE AND METHOD OF MANUFACTURING A SMOKING ARTICLE - Smoking article and method of manufacturing a smoking article A smoking article ( | 08-28-2014 |
Paul Meredith, Queensland AU
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20110056561 | BRANCHED MATERIALS FOR PHOTOVOLTAIC DEVICES - The invention provides a dye-sensitized photovoltaic device which comprises: a first electrode; a second electrode; and, disposed between the first and second electrodes: an electron acceptor material which comprises a semiconductive metal oxide, a redox mediator material, and a photosensitizing dye which comprises a dendrimer of formula (I): [X] | 03-10-2011 |
Paul Meredith, St. Lucia, Queensland AU
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20150308956 | METHOD FOR THE DETECTION OF ANALYTES VIA LUMINESCENCE QUENCHING - A sensing element for use in the detection of an analyte based on a luminescent response, the sensing element comprising a luminescent triaryl amine compound provided as a coating on a substrate. | 10-29-2015 |
Paul Meredith, Brisbane AU
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20080292889 | Control of Morphology of Silica Films - A method of controlling the morphology of silica or silica-like films formed by coating a precursor formulation of hydrolysable silicate oligomer onto a substrate and curing in a vapourous environment that comprises a base, water and a retarder that retards the hydrolysis of the oligomer. | 11-27-2008 |
20110223329 | Films and method of production thereof - A method of producing a film coated onto a substrate by dissolving a metal or metalloid containing compound having hydrolysable groups in a solvent to form a precursor solution. The precursor solution is coated onto the substrate as a continuous liquid phase. The precursor solution is then cured to produce a continuous, interconnected, nano-porous network. | 09-15-2011 |
Sheldon K,. Meredith, Roswell, GA US
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20160110652 | DETERMINING BUILDING OCCUPANCY RATES FROM MULTIPLE DATASETS - A mechanism is provided for determining occupancy of a building at a time segment. Data points for potential occupants are obtained, which each have a collection data source, a probability of occupancy, an identity to a given potential occupant, and a timestamp. An individual probability is determined by: gathering the data points in time segment requested for the given potential occupant such that the data points gathered only identify the given potential occupant, and averaging each of the probability of occupancy for the data points to obtain the individual probability the given potential occupant was in building during time segment. The individual probabilities are added for the potential occupants during the time segment to obtain a total of the individual probabilities, and divided by an amount N, which is a number of occupants that should be in the building, to obtain a building probability of occupancy for the building. | 04-21-2016 |
Steven Meredith, Stillwater Lake CA
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20100196835 | Single Burner Snow Melter Capable of a Snow Start Operation - A single burner snow melter is capable of a snow start. The burner assembly has a fuel burner having adjustable combustion output and a nozzle through which products of combustion emerge, and a combustion chamber which has a first portion in substantially air-tight communication with the fuel burner and which encloses the nozzle. A second portion of the combustion chamber is shaped and dimensioned such that the second portion is placed into a snow melting receptacle or pit. The combustion chamber has a plurality of directional discharge means formed at least on its second portion through which products of combustion from the fuel burner emerge, and thus agitate, and melt snow loaded into a tank or pit. The burner assembly also includes an air cooling assembly for supplying air to cool at least the first portion of the combustion chamber. | 08-05-2010 |