DEVICE AND METHODS OF DETECTION OF AIRBORNE AGENTS
    2.
    发明申请
    DEVICE AND METHODS OF DETECTION OF AIRBORNE AGENTS 有权
    检测飞机代理的装置和方法

    公开(公告)号:US20120148451A1

    公开(公告)日:2012-06-14

    申请号:US13217616

    申请日:2011-08-25

    IPC分类号: G01N21/65

    摘要: Provided are methods, devices and systems that utilize free-surface fluidics and SERS for analyte detection with high sensitivity and specificity. The molecules can be airborne agents, including but not limited to explosives, narcotics, hazardous chemicals, or other chemical species. The free-surface fluidic architecture is created using an open microchannel, and exhibits a large surface to volume ratio. The free-surface fluidic interface can filter interferent molecules, while concentrating airborne analyte molecules. The microchannel flow enables controlled aggregation of SERS-active probe particles in the flow, thereby enhancing the detector's sensitivity.

    摘要翻译: 提供了利用自由表面流体学和SERS用于具有高灵敏度和特异性的分析物检测的方法,装置和系统。 分子可以是空气传播剂,包括但不限于爆炸物,麻醉剂,危险化学品或其他化学物质。 自由表面流体结构使用开放的微通道产生,并且表现出大的表面与体积比。 自由表面流体界面可以过滤干扰分子,同时浓缩空气中的分析物。 微通道流动使SERS活性探针颗粒在流动中受控聚集,从而提高检测器的灵敏度。

    Device and methods of detection of airborne agents
    3.
    发明授权
    Device and methods of detection of airborne agents 有权
    空气传播剂检测装置及方法

    公开(公告)号:US08247238B2

    公开(公告)日:2012-08-21

    申请号:US13217616

    申请日:2011-08-25

    IPC分类号: G01N21/75

    摘要: Provided are methods, devices and systems that utilize free-surface fluidics and SERS for analyte detection with high sensitivity and specificity. The molecules can be airborne agents, including but not limited to explosives, narcotics, hazardous chemicals, or other chemical species. The free-surface fluidic architecture is created using an open microchannel, and exhibits a large surface to volume ratio. The free-surface fluidic interface can filter interferent molecules, while concentrating airborne analyte molecules. The microchannel flow enables controlled aggregation of SERS-active probe particles in the flow, thereby enhancing the detector's sensitivity.

    摘要翻译: 提供了利用自由表面流体学和SERS用于具有高灵敏度和特异性的分析物检测的方法,装置和系统。 分子可以是空气传播剂,包括但不限于爆炸物,麻醉剂,危险化学品或其他化学物质。 自由表面流体结构使用开放的微通道产生,并且表现出大的表面与体积比。 自由表面流体界面可以过滤干扰分子,同时浓缩空气中的分析物。 微通道流动使SERS活性探针颗粒在流动中受控聚集,从而提高检测器的灵敏度。

    Device and methods of detection of airborne agents
    6.
    发明授权
    Device and methods of detection of airborne agents 有权
    空气传播剂检测装置及方法

    公开(公告)号:US08017408B2

    公开(公告)日:2011-09-13

    申请号:US12597742

    申请日:2008-04-25

    IPC分类号: G01N21/75

    摘要: Provided are methods, devices and systems that utilize free-surface fluidics and SERS for analyte detection with high sensitivity and specificity. The molecules can be airborne agents, including but not limited to explosives, narcotics, hazardous chemicals, or other chemical species. The free-surface fluidic architecture is created using an open microchannel, and exhibits a large surface to volume ratio. The free-surface fluidic interface can filter interferent molecules, while concentrating airborne analyte molecules. The microchannel flow enables controlled aggregation of SERS-active probe particles in the flow, thereby enhancing the detector's sensitivity.

    摘要翻译: 提供了利用自由表面流体学和SERS用于具有高灵敏度和特异性的分析物检测的方法,装置和系统。 分子可以是空气传播剂,包括但不限于爆炸物,麻醉剂,危险化学品或其他化学物质。 自由表面流体结构使用开放的微通道产生,并且表现出大的表面与体积比。 自由表面流体界面可以过滤干扰分子,同时浓缩空气中的分析物。 微通道流动使SERS活性探针颗粒在流动中受控聚集,从而提高检测器的灵敏度。

    Inverse flash steam purifier
    8.
    发明授权
    Inverse flash steam purifier 失效
    反闪蒸汽净化器

    公开(公告)号:US5282876A

    公开(公告)日:1994-02-01

    申请号:US560395

    申请日:1990-07-31

    摘要: Impure steam is partially cooled on a first side of an energy transfer dee, forming a condensate substantially free of CO.sub.2 and other non-condensible gases. The condensate is separated from the impure steam and accumulated in a separator/accumulator. The condensate stream is conveyed through a control valve back to a second side of the energy transfer device for reheating to steam substantially free of CO.sub.2 and other non-condensible gases.

    摘要翻译: 不纯蒸汽在能量转移装置的第一侧部分冷却,形成基本上不含CO 2和其它不可冷凝气体的冷凝物。 冷凝物与不纯蒸汽分离并积聚在分离器/蓄能器中。 冷凝物流通过控制阀返回到能量转移装置的第二侧,用于再加热至基本上不含CO 2和其它不可冷凝气体的蒸汽。

    Apparatus and method for determining the hydrogen content of a substance
    9.
    发明授权
    Apparatus and method for determining the hydrogen content of a substance 失效
    用于确定物质的氢含量的装置和方法

    公开(公告)号:US4499380A

    公开(公告)日:1985-02-12

    申请号:US435817

    申请日:1982-10-21

    IPC分类号: G01N23/204 G01T3/00

    CPC分类号: G01N23/204

    摘要: Set forth in the accompanying disclosure is an apparatus 10 and method broadly useful for monitoring the concentration of a hydrogenous component within a given sample or space. The specific apparatus disclosed is directed to monitoring steam quality within a steam conduit 12. A fast neutron source 22 is positioned proximate a conduit 12. A moderating element 32 is situated intermediate the source 22 and conduit 12 for softening the neutron spectrum incident to the conduit 12. Two neutron detectors 36 are positioned at opposite sides of the conduit 12, each being spaced an equal radial distance from the source 22. Means 42 is provided for establishing from the rate of neutron detection and certain other physical properties of the sample data concerning the concentration or disposition of a hydrogenous component of the sample. The source 22, detectors 36, and conduit 12 are surrounded by a neutron reflector 20 of neutron moderating material.

    摘要翻译: 所附公开内容中列出的是用于监测给定样品或空间内的含氢组分浓度的广泛有用的装置10和方法。 所公开的具体装置旨在监测蒸汽导管12内的蒸汽质量。快中子源22位于导管12附近。调节元件32位于源22和导管12之间,用于软化入射到导管的中子谱 两个中子探测器36定位在导管12的相对侧,每个中子探测器36与源22隔开相等的径向距离。提供装置42用于根据中子探测速率和样品数据的某些其他物理性质建立有关 样品的含氢组分的浓度或处置。 源22,检测器36和导管12被中子调节材料的中子反射器20包围。

    Process of extracting both uranium and radium from uranium-containing
ores
    10.
    发明授权
    Process of extracting both uranium and radium from uranium-containing ores 失效
    从含铀矿石中提取铀和镭的工艺

    公开(公告)号:US4454097A

    公开(公告)日:1984-06-12

    申请号:US435858

    申请日:1982-10-21

    摘要: Ferric chloride leaching at temperatures in the range 47.degree.-74.degree. C. is found to remove up to 97% of the uranium from ores occurring in the Elliot Lake area of Canada, but radium removal was found to be poor due to the formation of sulphates from the sulphides present in the ore. In processes of the invention the sulphides are initially removed by flotation, when aqueous acidic ferric chloride of relatively low concentration, e.g. 0.1 M can extract as much as 92% of the radium, giving tailings which are effectively sulphide-free and with radium levels approaching a desired maximum of 24 pCi/g. Radium may be removed by adsorption on manganese dioxide and uranium may be removed by liquid extraction with D2EHPA (DAPEX process). The ferric chloride may be recirculated for further leaching, with reduction before the uranium extraction and reoxidation afterwards. Because of the recycle, it is possible to keep chloride ion levels in the effluent below the prescribed level in Ontario, Canada of 750 ppm.

    摘要翻译: 发现在47°至74℃的温度下的氯化铁浸出可以从加拿大的艾略特湖地区的矿石中除去多达97%的铀,但由于形成了镭 存在于矿石中的硫化物的硫酸盐。 在本发明的方法中,当相对低浓度的酸性氯化铁水溶液,例如, 0.1 M可以提取多达92%的镭,产生有效无硫化的尾矿,镭含量接近所需的最大值为24 pCi / g。 镭可以通过吸附在二氧化锰上去除,铀可以用D2EHPA(DAPEX工艺)液体萃取除去。 氯化铁可以再循环以进一步浸出,然后在铀萃取和再氧化之前还原。 由于回收利用,可以将加拿大安大略省的废水中氯离子浓度保持在规定水平以下,达到750ppm。