17 research outputs found

    New energy storage concept uses tapes

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    Energy storage system uses movable permeable tapes with cathode and electrolyte material that is drawn across an anode to produce electric power. The system features long shelf life, high efficiency, and flexible operation

    Development of the dry tape battery concept

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    High energy anode and cathode for dry tape battery - incapsulation of electrolyte - manufacturing and testing of devic

    Development of the dry tape battery concept quarterly report no. 1, 24 jan. - 30 apr. 1964

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    High energy anode and cathode development, electrolyte encapsulation, tape activation, and parasitic operation techniques for dry tape battery concep

    Numerical comparison of the closing dynamics of a new trileaflet and a bileaflet mechanical aortic heart valve

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    [[abstract]]The closing velocity of the leaflets of mechanical heart valves is excessively rapid and can cause the cavitation phenomenon. Cavitation bubbles collapse and produce high pressure which then damages red blood cells and platelets. The closure mechanism of the trileaflet valve uses the vortices in the aortic sinus to help close the leaflets, which differs from that of the monoleaflet or bileaflet mechanical heart valves which mainly depends on the reverse flow. We used the commercial software program Fluent to run numerical simulations of the St. Jude Medical bileaflet valve and a new trileaflet mechanical heart valve. The results of these numerical simulations were validated with flow field experiments. The closing velocity of the trileaflet valve was clearly slower than that of the St. Jude Medical bileaflet valve, which would effectively reduce the occurrence of cavitation. The findings of this study are expected to advance the development of the trileaflet valve.[[incitationindex]]SCI[[booktype]]電子版[[booktype]]紙

    Catalytic hydrocracking of polyphenyl systems for use in reclamation of organic nuclear reactor coolant /

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    "MRC Report No. MRB6003T1"--title page."Chemistry"--title page.Includes bibliographical references (p. 81-82)Mode of access: Internet

    Perspectives on : supercritical fluid technology for the preparation of 3D scaffolds for tissue engineering applications

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    Supercritical fluid technology has proven to be useful for many pharmaceutical applications and is now emerging as an alternative to conventional processes for the preparation of 3D structures and injectable particles suitable to be used in regenerative medicine. A current overview of the basic principles underlying supercritical fluid technology, the state of the art and future potential of this technology are presented.Ana Rita Duarte is grateful for financial support from Fundacao para a Ciencia e Tecnologia through the grant SFRH/BPD/34994/2007 and through the project PTDC/QUI/69263/2006
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