Abstract: A method an apparatus for filling a vessel with compressed gas is disclosed. Gas is compressed into the vessel at a predetermined flow rate using a variable speed pump or compressor. The flow rate is adjusted to increase the gas pressure at a predetermined rate of change. The flow rate is adjusted based upon the instantaneous value of a measured parameter such as gas temperature or pressure or ambient temperature. The parameter is measured by a transducer and the value is fed back to a controller which adjusts the speed of the compressor or pump to produce the flow rate needed to achieve the predetermined pressure rate of change.

Abstract: Compressed gas delivery system and process for use thereof wherein compressed gases are withdrawn from compressed gas storage vessels, passed through pressure regulated flow control valves and critical flow venturis to control the mass flow rates of the compressed gases forming the blend of the compressed gases prior to dispending the blend.

Abstract: Method for dispensing a gas comprising (a) providing a gas storage system containing pressurized gas and having at least first and second gas storage volumes, first and second flow control valves in flow communication with the first and second gas storage volumes, respectively, wherein each flow control valve is initially closed, and wherein the first gas storage volume has a smaller volumetric capacity than the second gas storage volume; (b) selecting a reference temperature; (c) measuring the ambient temperature; (d) providing a gas receiving vessel and placing it in flow communication with each flow control valve and with the gas storage system; and (e) initiating delivery of the gas by (i) opening the first flow control valve when the ambient temperature is equal to or greater than the reference temperature or (ii) opening the second flow control valve when the ambient temperature is less than the reference temperature.

Abstract: The present invention relates to a method and circuit for selectively repairing an embedded memory module having memory elements in an integrated circuit chip. The method comprises performing a plurality of tests on the embedded memory module under operating conditions to identify a plurality of non-operational memory elements in the embedded memory module and, in response to identifying the non-operational memory elements, generating a plurality of corresponding repair solutions. The method further comprises storing the plurality of corresponding repair solutions in a non-volatile storage element and determining from a mask a subset of the plurality of repair solutions that should be restored.

Abstract: Compositions capable of simultaneous two-photon absorption and higher order absorptivities are provided. Compounds having a donor-pi-donor or acceptor-pi-acceptor structure are of particular interest, where the donor is an electron donating group, acceptor is an electron accepting group, and pi is a pi bridge linking the donor and/or acceptor groups. The pi bridge may additionally be substituted with electron donating or withdrawing groups to alter the absorptive wavelength of the structure. Also disclosed are methods of generating an excited state of such compounds through optical stimulation with light using simultaneous absorption of photons of energies individually insufficient to achieve an excited state of the compound, but capable of doing so upon simultaneous absorption of two or more such photons. Applications employing such methods are also provided, including controlled polymerization achieved through focusing of the light source(s) used.

Abstract: Method for dispensing a gas comprising (a) providing a gas storage system containing pressurized gas and having at least first and second gas storage volumes, first and second flow control valves in flow communication with the first and second gas storage volumes, respectively, wherein each flow control valve is initially closed, and wherein the first gas storage volume has a smaller volumetric capacity than the second gas storage volume; (b) selecting a reference temperature; (c) measuring the ambient temperature; (d) providing a gas receiving vessel and placing it in flow communication with each flow control valve and with the gas storage system; and (e) initiating delivery of the gas by (i) opening the first flow control valve when the ambient temperature is equal to or greater than the reference temperature or (ii) opening the second flow control valve when the ambient temperature is less than the reference temperature.

Abstract: Method for dispensing a gas comprising (a) providing a gas storage system containing pressurized gas and having at least first and second gas storage volumes, first and second flow control valves in flow communication with the first and second gas storage volumes, respectively, wherein each flow control valve is initially closed, and wherein the first gas storage volume has a smaller volumetric capacity than the second gas storage volume; (b) selecting a reference temperature; (c) measuring the ambient temperature; (d) providing a gas receiving vessel and placing it in flow communication with each flow control valve and with the gas storage system; and (e) initiating delivery of the gas by (i) opening the first flow control valve when the ambient temperature is equal to or greater than the reference temperature or (ii) opening the second flow control valve when the ambient temperature is less than the reference temperature.

Abstract: A method for dispensing a compressed gas for reducing the amount of residual gas in dispensing station storage vessels before refilling is required. The method comprises transferring compressed gas into receiving vessels in a first series of fill-ups where each of the receiving vessels receive compressed gas from a first mobile storage device and subsequently from a second mobile storage device, transporting the first mobile storage device to a refilling station after the first mobile storage device has been depleted to a selected depletion level, refilling the first mobile storage device at the refilling station, and transferring compressed gas into receiving vessels in a second series of fill-ups where each of the receiving vessels receive compressed gas from the second mobile storage device and one or more of the first mobile storage device after refilling and a third mobile storage device.

Abstract: A hydrogen dispensing station and method of operating a hydrogen dispensing station for dispensing to multiple receiving vessels. The station and method limit receiving vessel gas temperature during dispensing. Various components used to limit receiving vessel gas temperature during dispensing are mutual to multiple hydrogen service ports. Receiving vessel gas temperature during dispensing may be affected by pressure ramp rate control, cooling of hydrogen in a heat exchanger, and/or use of a lower temperature hydrogen source stream.

Abstract: A hydrogen dispenser comprises a programmable controller and a user interface operably connected to the programmable controller. The programmable controller has a plurality of user-selectable hydrogen dispensing rate algorithms. The user interface offers the plurality of user-selectable hydrogen dispensing rate algorithms and is used for setting a user-selected dispensing rate algorithm from among the plurality of user-selectable hydrogen dispensing rate algorithms.

Abstract: Method for supplying a high purity gas product comprising providing a first gas stream including a major component and at least one impurity component, determining the concentration of the at least one impurity component, and comparing the concentration so determined with a reference concentration for that component. When the value of the concentration so determined is less than or equal to the reference concentration, the first gas stream is utilized to provide the high purity gas product. When the value of the concentration so determined is greater than the reference concentration, a second gas stream comprising the major component is provided and the first and second gas streams are mixed to yield a mixed gas stream having a concentration of the at least one impurity component that is less than the reference concentration.

Abstract: The present invention provides novel compositions suitable for use in an intermolecular photodeprotection reaction scheme. Such compositions include a chromophore compound and a second compound having a photocleavable group bonded to a protected functional group. Novel compounds which can used in intramolecular photodeprotection are also provided. These compounds have a chromophore moiety bonded to a photocleavable group, which itself is bonded to a protected group. The compounds and compositions disclosed herein can be used in two-photon and multi-photon excitation.

Abstract: A method of detecting particles during inspection is provided. The method includes establishing a security checkpoint including a detection system, wherein the detection system includes a chamber defining a passage and includes a plurality of jets. The method also includes passing an individual through the passage, enhancing a convection plume including particles from the individual by blowing air through at least one of the plurality of jets, and absorbing the particles in a preconcentrator including a filter encased in a frame having a high thermal conductivity. Moreover, the method includes evaporating the particles absorbed in the preconcentrator and using a detector to determine whether the particles are from at least one of an explosive material and a narcotic substance.

Abstract: A system for displaying data includes a display unit and a transmitting unit. A display unit has a housing that defines an ambient light window and a viewing window. A data display is positioned inside the housing, and optics are included for guiding light from the ambient light window through the display and out the viewing window.

Abstract: Disclosed are embodiments of organic thin-film transistors (OTFT) with a gate insulator layer comprised of nanocomposites incorporating metal oxide nanoparticles coated by organic ligands and methods of fabricating such OTFTs. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: Disclosed are coated metal oxide nanoparticles comprising a metal oxide nanoparticle having a surface; and ligands attached to the metal oxide nanoparticle surface. Also disclosed are phosphonic acid compounds comprising the structure Gn-R-Xn, wherein G is a terminal group; wherein R is a bridging group; wherein X is a phosphonic acid group; and wherein each n is, independently, 1, 2, or 3. Also disclosed are methods for preparing and using coated metal oxide nanoparticles. Also disclosed are nanocomposite compositions comprising a polymer; and a coated metal oxide nanoparticle dispersed within the polymer. Also disclosed are articles, films, and capacitors comprising a coated metal oxide nanoparticle or a nanocomposite composition. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: Method for dispensing a gas comprising (a) providing a gas storage system containing pressurized gas and having at least first and second gas storage volumes, first and second flow control valves in flow communication with the first and second gas storage volumes, respectively, wherein each flow control valve is initially closed, and wherein the first gas storage volume has a smaller volumetric capacity than the second gas storage volume; (b) selecting a reference temperature; (c) measuring the ambient temperature; (d) providing a gas receiving vessel and placing it in flow communication with each flow control valve and with the gas storage system; and (e) initiating delivery of the gas by (i) opening the first flow control valve when the ambient temperature is equal to or greater than the reference temperature or (ii) opening the second flow control valve when the ambient temperature is less than the reference temperature.

Abstract: A method an apparatus for filling a vessel with compressed gas is disclosed. Gas is compressed into the vessel at a predetermined flow rate using a variable speed pump or compressor. The flow rate is adjusted to increase the gas pressure at a predetermined rate of change. The flow rate is adjusted based upon the instantaneous value of a measured parameter such as gas temperature or pressure or ambient temperature. The parameter is measured by a transducer and the value is fed back to a controller which adjusts the speed of the compressor or pump to produce the flow rate needed to achieve the predetermined pressure rate of change.

Abstract: A diagnostic method for a gas supply system includes: determining a desired ramp rate for filling a vessel from a supply of compressed gas; monitoring the actual pressure of gas entering the vessel; and discontinuing the flow of gas into the vessel when the actual pressure deviates from the intended pressure at the desired ramp rate by an undesired amount. A system for carrying out the method includes a flow controller for controlling operation of the supply system to deliver compressed gas from a source to a vessel through a supply line at a desired ramp rate. The system employs a pressure monitor downstream of a control valve for measuring the pressure of gas directed into the vessel and transmitting pressure-related data to the flow controller, which closes the control valve to discontinue filling of the vessel if the actual pressure exceeds a permissible deviation from the intended pressure.

Abstract: Method for supplying a high purity gas product comprising providing a first gas stream including a major component and at least one impurity component, determining the concentration of the at least one impurity component, and comparing the concentration so determined with a reference concentration for that component. When the value of the concentration so determined is less than or equal to the reference concentration, the first gas stream is utilized to provide the high purity gas product. When the value of the concentration so determined is greater than the reference concentration, a second gas stream comprising the major component is provided and the first and second gas streams are mixed to yield a mixed gas stream having a concentration of the at least one impurity component that is less than the reference concentration.