Abstract:
A method and apparatus for managing temperature and pressure of fuel in a fuel tank stored at or near its vapor pressure. In response to fuel feed pressure, a variable ratio of liquid fuel to fuel vapor is extracted from the fuel tank in order to regulate temperature and pressure of the fuel for the purpose of keeping the pressure lower in anticipation of refilling or to assist a vaporizer of the fuel system which is incompletely vaporizing the fuel.
Abstract:
The present application relates to a sensor (1) for use in detecting an analyte comprising: a transducer (10) composed of a pyroelectric or piezoelectric polymer substrate e.g. PVDF (3) and a transparent electrode layer (4) on a surface of the substrate; a layer of parylene (12) on the transparent electrode layer; and a reagent (17) immobilised on the transducer, the reagent having a binding site which is capable of binding the analyte or a derivative of the analyte.
Abstract:
The present invention relates to a method for detecting an analyte (10) in a sample, comprising the steps of: providing a transducer comprising a pyroelectric or piezoelectric element and electrodes which is capable of transducing a change in energy to an electrical signal, a first reagent immobilised on the transducer, and a second reagent (11) releasably bound to the first reagent and having a label attached thereto which is capable of absorbing electromagnetic radiation to generate energy by non-radiative decay, wherein either the first or second reagent has a binding site which allows binding to the other and which is capable of preferentially binding to the analyte or a derivative of the analyte; exposing the transducer to the sample thereby allowing the analyte or a derivative of the analyte to bind to the binding site and displace the second reagent; irradiating the sample with electromagnetic adiation; transducing the energy generated into an electrical signal; and detecting the electrical signal. The invention also provides a device for carrying out the method.
Abstract:
The present application relates to a chemical sensing device for detecting an analyte in a liquid sample containing suspended particles. The device comprises a radiation source adapted to generate electromagnetic radiation, a transducer (3) having a pyroelectric or piezoelectric element and electrodes which is capable of transducing a change in energy to an electrical signal, at least one reagent (2) on or proximal to the transducer (3), the reagent being capable of absorbing the electromagnetic radiation to generate energy when in contact with the analyte, a chamber (9) for holding the sample in fluid contact with transducer, and a detector which is capable of detecting the electrical signal generated by the transducer. The transducer is in a plane from +45° to −45° to the vertical.
Abstract:
A clothes hanger formed from a single continuous strip of material shaped to define a pair of substantially co-planar arms. The arms are configured for supporting clothes and are disposed symmetrically with respect to a bridging piece interconnecting the arms and which is upstanding above the clothes-supporting surfaces of the arms. The bridging piece defines a re-entrant rail-receiving slot having a relatively narrow mouth disposed between the arms so that the hanger may be suspended by the bridging piece when engaged with a rail entered into the slot through the mouth thereof.
Abstract:
An integrated digital loop carrier (IDLC) system includes digital line feeders and signal processors to interface with the feeders an to ultimately provide data to subscriber instruments. The system can be employed as a central office terminal (COT) or remote digital terminal (RDT) with analog, T1 or SONET feeders and any conventional link medium. Data are put in DS1 format and multiplexed onto token ring optical loops for delivery to banks of channel units wherein the optical signals are translated to electrical signals for delivery to the Cus and subscribers. A method and apparatus is provided for mapping and demapping signals between virtual tributaries (VT) and digital signal formats in the RDT of an integrated digital loop carrier. An application-specific circuit provides such mapping and demapping functions as Floating Byte Synchronous VT to Locked Byte Synchronous VT, Floating Asynchronous VT to Locked Byte Synchronous VT, Floating Asynchronous VT to Floating Asynchronous VT, DS1 to Locked Byte Synchronous VT, DS1 to Floating Asynchronous VT, and DS1 to Floating Byte Synchronous VT.
Abstract:
The present invention relates to a method for detecting an analyte (10) in a sample, comprising the steps of: providing a transducer (3) having a pyroelectric or piezoelectric element and electrodes which is capable of transducing a change in energy to an electrical signal, a first reagent (9) immobilized on the transducer, the first reagent having a binding site which is capable of binding the analyte or a derivative of the analyte, exposing the sample to the transducer thereby allowing the analyte or a derivative of the analyte to bind to the first reagent to form a first reagent-analyte complex (13); introducing a second reagent (11), the second reagent having a binding site which is capable of selectively binding the first reagent-analyte complex, wherein the second reagent has a label (12) attached thereto which is capable of absorbing electromagnetic radiation to generate energy by non-radiative decay; irradiating the sample with electromagnetic radiation; transducing the energy generated into an electrical signal; and detecting the electrical signal. The invention also provides a kit for carrying out the method.
Abstract:
A pump assisted refilling system for LPG and other fuels wherein the fuel storage pressure is at, or close to, the vapor pressure of the fuel. A fuel pump is selectively activated to assist fuel delivery from the refilling fitting to the tank interior responsive to a determined fuel pressure condition of the fuel so that rapid refilling is always assured.
Abstract:
A system implements dishonest policies for managing unauthorized access requests. The system includes memory management hardware to store a set of dishonest policy bits, each dishonest policy bit that is configured to a predetermined value indicating disallowed access for one of a set of memory ranges. When a processor receives an access request for a location in a memory range to which access is not allowed as indicated by a set dishonest policy bit, the processor returns a false indication according to a dishonest policy that the requested access has been performed.
Abstract:
This invention relates to a method for detecting an analyte in a sample. The method comprises the steps of exposing the sample to a transducer having a pyroelectric or piezoelectric element and electrodes which is capable of transducing a change in energy to an electrical signal, the transducer having at least one reagent proximal thereto, the reagent having a binding site which is capable of binding the analyte or a complex or derivative of the analyte, wherein at least one of the analyte or the complex or derivative of the analyte has a label attached thereto which is capable of absorbing the electromagnetic radiation generated by the radiation source to generate energy by non-radiative decay; irradiating the reagent with a series of pulses of electromagnetic radiation, transducing the energy generated into an electrical signal, detecting the electrical signal and the time delay between each pulse of electromagnetic radiation from the radiation source and the generation of the electric signal. The time delay between each of the pulses of electromagnetic radiation and the generation of the electric signal corresponds to the position of the analyte at any of one or more positions at different distances from the surface of the transducer. The label is a nanoparticle comprising polypyrrole or a derivative thereof. The invention also provides a kit suitable for performing this method.