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    POINT-OF-USE DEVICES AND METHODS FOR DETERMINING RHEOLOGICAL PROPERTIES OF SAMPLES
    43.
    发明申请
    POINT-OF-USE DEVICES AND METHODS FOR DETERMINING RHEOLOGICAL PROPERTIES OF SAMPLES 有权

    公开(公告)号：US20230026439A1

    公开(公告)日：2023-01-26

    申请号：US17864349

    申请日：2022-07-13

    申请人： Massachusetts Institute of Technology

    发明人： Nicole Alejandra BUSTOS ,  Lydia BOUROUIBA

    IPC分类号： G01N11/08

    摘要： Apparatuses and methods designed to allow for on-site, on-demand measurement of rheological properties of a sample are disclosed. The apparatuses and methods utilize both a visual component (e.g., a camera) to obtain information about the sample for making such rheological property determinations and an integrated electrical circuit to apply a current to the sample for also making such rheological property determinations. The application of the current is done in a manner such that a thinning behavior of the sample is unaffected. Further, the apparatuses are configured in a manner that allow them to be portable so that samples can be analyzed shortly after they are received, at a point-of-use. Various configurations and methods associated with such apparatuses are also disclosed.

    GAS INJECTION SYSTEM FOR PLASMA BLACKOUT ALLEVIATION STUDIES
    45.
    发明申请
    GAS INJECTION SYSTEM FOR PLASMA BLACKOUT ALLEVIATION STUDIES 有权

    公开(公告)号：US20230019034A1

    公开(公告)日：2023-01-19

    申请号：US17863784

    申请日：2022-07-13

    申请人： Massachusetts Institute of Technology

    发明人： Humberto L. Caldelas, II ,  Wesley Harris

    IPC分类号： H01Q1/00 ,  B64G1/62 ,  B64G1/66 ,  H01Q1/28

    摘要： A test article described herein enables ground-based arc jet testing to investigate RF blackout mitigation using electrophilic gas injection upstream of an antenna. The article can be scaled up to actual flight vehicles, thereby allowing reentry vehicles to be in constant, or near constant, communication during atmospheric reentry. Plasma blackout mitigation is an enabling technology that is required to advance hypersonic flight. Example articles include an integral structure that supports a nozzle, piping for gas connected to the nozzle and an RF window. An ablator can be attached to the structure. The ablator can include a graphite ablator and an insulator. A flight vehicle can include an antenna and such an article.

    System and method for learning-guided electron microscopy
    46.
    发明授权
    System and method for learning-guided electron microscopy 有权

    公开(公告)号：US11557459B2

    公开(公告)日：2023-01-17

    申请号：US17469314

    申请日：2021-09-08

    申请人： Massachusetts Institute of Technology ,  President and Fellows of Harvard College

    发明人： Nir Shavit ,  Aravinathan Samuel ,  Jeff Lichtman ,  Lu Mi

    IPC分类号： H01J37/28 ,  H01J37/21 ,  G06T7/11 ,  G06V10/25

    摘要： A system and method is provided for rapidly collecting high quality images of a specimen through controlling a re-focusable beam of an electron microscope. An intelligent acquisition system instructs the electron microscope to perform an initial low-resolution scan of a sample. A low-resolution image of the sample is received by the intelligent acquisition system as scanned image information from the electron microscope. The intelligent acquisition system then determines regions of interest within the low-resolution image and instructs the electron microscope to perform a high-resolution scan of the sample, only in areas of the sample corresponding to the determined regions of interest or portions of the determined regions of interest, so that other regions within the sample are not scanned at high-resolution, where the high-resolution scanning in the regions of interest is guided by a probability map using a deep neural network for segmentation.

    Superconducting parametric amplifier neural network
    47.
    发明授权
    Superconducting parametric amplifier neural network 有权

    公开(公告)号：US11556769B2

    公开(公告)日：2023-01-17

    申请号：US16860324

    申请日：2020-04-28

    申请人： Massachusetts Institute of Technology

    发明人： Alexander Wynn

    IPC分类号： G06F17/00 ,  G06N3/063 ,  G06N10/00 ,  G06N3/04 ,  H03K19/195

    摘要： In some embodiments, a superconducting parametric amplification neural network (SPANN) includes neurons that operate in the analog domain, and a fanout network coupling the neurons that operates in the digital domain. Each neuron is provided one or more input currents having a resolution of several bits. The neuron weights the currents, sums the weighted currents with an optional bias or threshold current, then applies a nonlinear activation function to the result. The nonlinear function is implemented using a quantum flux parametron (QFP), thereby simultaneously amplifying and digitizing the output current signal. The digitized output of some or all neurons in each layer is provided to the next layer using a fanout network that operates to preserve the digital information held in the current.