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Now showing items 1 - 16 of 46738

  • JOHNSON THERMO-ELECTROCHEMICAL CONVERTER

    A electrochemical direct heat to electricity converter having a low temperature membrane electrode assembly array and a high temperature membrane electrode assembly array is provided. Additional cells are provided in the low temperature membrane electrode assembly array, which causes an additional amount of the working fluid, namely hydrogen, to be pumped to the high pressure side of the converter. The additional pumped hydrogen compensates for the molecular hydrogen diffusion that occurs through the membranes of the membrane electrode assembly arrays. The MEA cells may be actuated independently by a controller to compensate for hydrogen diffusion.
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  • Johnson ambient-heat engine

    An ambient-heat engine has a substantially thermally-conductive housing whose interior is divided into a high-pressure chamber and a low-pressure chamber by a substantially gas-impermeable barrier. An ionically-conductive, electrical-energy-generating mechanism forms at least a portion of the barrier. First hydrogen-storage medium is disposed within the high-pressure chamber and second hydrogen-storage medium is disposed within the low-pressure chamber. An electrical-energy storage device connected to the ionically-conductive, electrical-energy-generating mechanism is operable between a charge condition and a discharge condition. In a charge condition, hydrogen atoms within the high-pressure chamber are converted to hydrogen ions and conducted through the electrical-energy-generating mechanism to the low-pressure chamber causing electrical-energy to be generated to the electrical-energy storage device. When the electrical-energy storage device is in a discharge condition an electric current is passed through the electrical-energy-generating mechanism causing hydrogen in the low-pressure chamber to convert to hydrogen ions and conduct through the electrical-energy-generating mechanism to the high-pressure chamber.
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  • Stevens–Johnson syndrome

    Bakshi, Satvinder Singh  

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  • A SENSOR FOR MEASUREMENTS USING JOHNSON NOISE IN MATERIALS

    A method of making measurements includes providing a sensor with at least one solid state electronic spin; irradiating the sensor with radiation from an electromagnetic radiation source that manipulates the solid state electronic spins to produce spin-dependent fluorescence, wherein the spin-dependent fluorescence decays as a function of relaxation time; providing a target material in the proximity of the sensor, wherein, thermally induced currents (Johnson noise) present in the target material alters the fluorescence decay of the solid state electronic spins as a function of relaxation time; and determining a difference in the solid state spins spin-dependent fluorescence decay in the presence and absence of the target material and correlating the difference with a property of the sensor and/or target material.
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  • CSAT director Kimberly Johnson leaving

    Knopf   Alison  

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  • Dermatological emergency: Stevens Johnson Syndrome

    Köse, Ataman   Karakulak, Serkan   Bozkurt, Seyran   Yoğurtçu, Gizem  

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  • Evanescent-wave Johnson noise in small devices

    Premakumar, Vickram N   Vavilov, Maxim G   Joynt, Robert  

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  • The Johnson homomorphism and its kernel

    Putman   Andrew  

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  • On finiteness properties of the Johnson filtrations

    Ershov, Mikhail; He, Sue  

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  • Weak⁎-sequential properties of Johnson–Lindenstrauss spaces

    Avilés, Antonio; Martínez-Cervantes, Gonzalo; Rodríguez, José  

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  • Frequency-response mismatch effects in Johnson noise thermometry

    White, D R   Qu, J-F  

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  • Synchronization and separation in the Johnson schemes

    Aljohani Mohammed   Bamberg John   Cameron Peter  

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  • Johnson ATV safety bar

    The Johnson ATV Safety Bar including an articulating adjustable roll bar (12), a seat back (74), a safety seat belt (16), an adjustable foot and leg guard (18) and an articulating adjustable mounting bracket (9). The roll bar (12) may prevent injury or death in cases of ATV rollover accidents or crashes by absorbing the brunt of the force from the rolling or falling ATV. The seat back (14) may include a rope or strap (64) laced between metal bars (60) having a series of holes (62), the metal bars (60) being integrated onto the roll bar (12). The safety belt (16) may be attached to the roll bar (12) at various points (68) and may be configurable to meet the preference of the ATV operator. The system may include a seat belt retractor (140) to secure the operator on the ATV. The system may include an articulating adjustable ATV roll bar protection system (12) designed to fit various sizes and brands of ATVs.
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  • Mary Johnson and Ida Anderson

    Gustafson   David M.  

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  • Farming. Edited by Sarah Johnson

    Zeide   Anna  

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  • Johnson and Johnson faces lawsuit over vaginal mesh devices

    Dyer   Owen  

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