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213 条记录 (耗时 0.019 秒)

    TERAHERTZ TRANSCEIVERS AND METHODS FOR EMISSION AND DETECTION OF TERAHERTZ PULSES USING SUCH TRANSCEIVERS
    112.
    发明公开
    TERAHERTZ TRANSCEIVERS AND METHODS FOR EMISSION AND DETECTION OF TERAHERTZ PULSES USING SUCH TRANSCEIVERS 有权
    太赫兹收发器和发射这些应用的方法和太赫兹脉冲检测

    公开(公告)号：EP1281061A1

    公开(公告)日：2003-02-05

    申请号：EP01924676.8

    申请日：2001-04-05

    申请人： RENSSELAER POLYTECHNIC INSTITUTE

    发明人： ZHANG, X.-C. ,  TANI, Masahiko ,  JIANG, Zhiping ,  CHEN, Qin

    IPC分类号： G01N21/35 ,  G01J11/00

    CPC分类号： G01N21/3581 ,  G01J11/00

    摘要： A system for emitting and detecting terahertz frequency electromagnetic pulses. The system comprises a single transceiver device, which may be an electro-optic crystal or photoconductive antenna, for both emitting and detecting the pulses. A related method comprises using a single transceiver device to both emit and detect electromagnetic terahertz frequency pulses. The transceiver device is excited by a pump pulse to emit a terahertz output pulse, which is modulated with a chopper. An object reflects the terahertz pulse and the reflected pulse is detected in the transceiver using a probe pulse. A lock-in amplifier set to the same frequency of the chopper is used to reduce noise in the signal detected by the transceiver. An image of the object may be created using the intensity or the timing of the peak amplitude of the terahertz pulses reflected from the object.

    POLYMER RECYCLING BY SELECTIVE DISSOLUTION
    116.
    发明授权
    POLYMER RECYCLING BY SELECTIVE DISSOLUTION 失效
    聚合物回收利用选择性溶解

    公开(公告)号：EP0491836B1

    公开(公告)日：1996-05-01

    申请号：EP90914451.1

    申请日：1990-08-29

    申请人： RENSSELAER POLYTECHNIC INSTITUTE

    发明人： NAUMAN, E., Bruce ,  LYNCH, Jerry, C.

    IPC分类号： C08J11/06 ,  C08F6/04

    CPC分类号： C08J11/08 ,  Y02W30/701

    摘要： A method for separating polymers from a physically commingled solid mixture containing a plurality of polymers comprises dissolving a first one of the polymers in a solvent at a first lower temperature to form a first preferably single phase solution and a remaining solid component. The solid component contains additional polymers which are not soluble to the solvent at the first temperature but which may be soluble at higher temperatures. The method includes subsequently heating the solvent to dissolve additional polymer from the solid component to form subsequent solutions. The polymers are then separated from their respective solution either using flash evaporation techniques when more than one polymer has been dissolved at a single temperature, or conventional techniques for extracting a polymer from a solvent in a solution.

    SUBSTITUTED 6H-PYRIDO (4,3-b) CARBAZOLES
    119.
    发明公开
    SUBSTITUTED 6H-PYRIDO (4,3-b) CARBAZOLES 失效
    取代的6H-吡啶（4,3-b）咔唑

    公开(公告)号：EP0416024A1

    公开(公告)日：1991-03-13

    申请号：EP89906894.0

    申请日：1989-05-25

    申请人： RENSSELAER POLYTECHNIC INSTITUTE

    发明人： ARCHER, Sydney

    IPC分类号： A61K31 ,  A61P33 ,  A61P35 ,  C07D471

    CPC分类号： C07D471/04

    摘要： L'invention concerne des composés nouveaux et utiles présentant une activité antitumorale remarquable chez la souris et dans des cultures cellulaires. Ces composés, qui sont également actifs contre la schistosomiase, ont la formule structurelle (I) dans laquelle R est choisi entre H et CH3; R'' est choisi entre CH3 et CR1 HOOCNHR2; R''' est choisi entre H et CR1 HOOCNHR2; R', R'' et R''' sont différents les uns des autres. Lorsque R' représente CH3, R ne représente pas H; R1 est choisi entre H et alkyle inférieur; et R2 est choisi parmi alkyle inférieur, aminoalkyle et phényle. L'invention concerne également des sels pharmaceutiquement acceptables.

    摘要翻译： 本发明涉及在小鼠和细胞培养物中具有显着抗肿瘤活性的新型且有用的化合物。 这些对血吸虫病有活性的化合物具有结构式（I），其中R选自H和CH 3; R“选自CH 3和CR 1 HOOCNHR 2; R''选自H和CR 1 HOOCNHR 2; R'，R“和R”'彼此不同。 当R'是CH3时，R不是H; R1选自H和低级烷基; 并且R2选自低级烷基，氨基烷基和苯基。 本发明还涉及药学上可接受的盐。