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    Zinc oxide based sorbent and process for preparing same
    271.
    发明授权
    Zinc oxide based sorbent and process for preparing same 有权

    公开(公告)号：US11491457B2

    公开(公告)日：2022-11-08

    申请号：US16635790

    申请日：2018-08-01

    Applicant: Research Triangle Institute

    Inventor： Jian-Ping Shen ,  Jason S. Norman ,  Brian S. Turk ,  Raghubir Gupta

    IPC: B01J20/08 ,  B01D53/02 ,  B01J20/28 ,  B01J20/30

    Abstract: Zinc oxide-based sorbents, and processes for preparing and using them are provided, wherein the sorbents are preferably used to remove one or more reduced sulfur species from gas streams. The sorbents contain an active zinc component, optionally in combination with one or more promoter components and/or one or more substantially inert components. The active zinc component is a two-phase material, consisting essentially of a zinc oxide (ZnO) phase and a zinc aluminate (ZnAl2O4) phase. Each of the two phases is characterized by a relatively small crystallite size of typically less than about 50 nm (500 Angstroms). Preferably the sorbents are prepared by using an alkali metal base to convert a precursor mixture, containing a precipitated zinc oxide precursor and a precipitated aluminum oxide precursor, to the two-phase, active zinc oxide containing component, with the resulting sorbent having a sodium level within a desired range.

    APPARATUS FOR TESTING ELECTRONIC CIGARETTES
    275.
    发明申请
    APPARATUS FOR TESTING ELECTRONIC CIGARETTES 有权

    公开(公告)号：US20220160050A1

    公开(公告)日：2022-05-26

    申请号：US17669759

    申请日：2022-02-11

    Applicant: Research Triangle Institute

    Inventor： James B. CARLSON ,  Jonathan W. THORNBURG

    IPC: A24F40/80 ,  H02J7/00 ,  G01K7/02

    Abstract: Apparatus for testing an electronic smoking (e-smoking) device includes an electronic circuit for electronically activating an e-smoking device to convert a wicking fluid therein into a plurality of puffs, and a wireless controller for controlling the electronic circuit. The electronic circuit is configured for activating the e-smoking device based on wireless signals received at the wireless controller. The apparatus is further configured for measuring a characteristic of the e-smoking device, wherein, optionally, the characteristic is a rate of conversion of the wicking fluid to vapor as a function of time for the plurality of puffs.

    And method for optical bench for detecting particles
    278.
    发明授权
    And method for optical bench for detecting particles 有权

    公开(公告)号：US11047787B2

    公开(公告)日：2021-06-29

    申请号：US16861550

    申请日：2020-04-29

    Applicant: Research Triangle Institute

    Inventor： Anthony Clint Clayton ,  Howard Jerome Walls ,  Roger H. Pope

    IPC: G01N15/02 ,  G01N15/14

    Abstract: An optical system for particle detection. The system includes a sample inlet housing; a sample outlet housing; a detection cavity having an axially surrounding wall and disposed between the sample inlet housing and the sample outlet housing; a light source configured to irradiate light through the detection cavity to particles of a sample fluid flowing inside the wall of the detection cavity; a light detector for detecting the light that is scattered by particles of the sample fluid in the detection cavity; an alignment rail having a base and sidewalls which a) extend from the sample inlet housing to the sample outlet housing and b) connect the sample inlet housing to the sample outlet housing; and the alignment rail comprising a channel formed by the base and the sidewalls, the channel having a channel lateral width fitting to a housing width of at least one of the sample inlet housing and the sample outlet housing, whereby the sample inlet housing, the housing, and the sample outlet housing are held in alignment together.

    ENCASED POLYMER NANOFIBER-BASED ELECTRONIC NOSE
    279.
    发明申请
    ENCASED POLYMER NANOFIBER-BASED ELECTRONIC NOSE 有权

    公开(公告)号：US20210181172A1

    公开(公告)日：2021-06-17

    申请号：US17032614

    申请日：2020-09-25

    Applicant: Research Triangle Institute

    Inventor： David S. Ensor ,  Li Han

    IPC: G01N33/00 ,  G01N27/12 ,  G01N27/22

    Abstract: A chemical sensor and a system and method for sensing a chemical species. The chemical sensor includes a plurality of nanofibers whose electrical impedance varies upon exposure to the chemical species, a substrate supporting and electrically isolating the fibers, a set of electrodes connected to the plurality of fibers at spatially separated points to permit the electrical impedance of the plurality of fibers to be measured, and a membrane encasing the fibers and having a thickness ranging from 50 μm to 5.0 mm. The system includes the chemical sensor, an impedance measuring device coupled to the electrodes and configured to determine an electrical impedance of the plurality of fibers, and an analyzer configured to identify the chemical species based on a change in the electrical impedance.

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