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    Systems and Methods for Detecting Collusion in Student Testing Using Graded Scores or Answers for Individual Questions
    2.
    发明申请
    Systems and Methods for Detecting Collusion in Student Testing Using Graded Scores or Answers for Individual Questions 有权

    公开(公告)号：US20220114901A1

    公开(公告)日：2022-04-14

    申请号：US17450984

    申请日：2021-10-14

    申请人： Mark Douglas Biggin ,  Jingyi Li ,  Guan'ao Yan

    发明人： Mark Douglas Biggin ,  Jingyi Li ,  Guan'ao Yan

    IPC分类号： G09B7/00

    摘要： Systems and methods for determining collusion in student academic exams are described. One embodiment includes receiving an input electronic file with academic test data that includes student identifiers, question scores associated with each student identifier, and the total score for each student, calculating an identity score for each pair of students, determining a maximum identity score for each student, generating a normalized collusion score for each student by subtracting from the maximum identity score an average identity score to generate an identity metric, and dividing the identity metric by a local average identity metric to generate a normalized collusion score, where the local average identity metric is an estimated average of a set of identity metrics for a subset of students adjacent to one another on the total test score ranked list, writing student identifiers and normalized collusion scores associated with student identifiers to an output electronic file.

    MICROFLUIDIC VALVE SYSTEMS
    3.
    发明申请
    MICROFLUIDIC VALVE SYSTEMS 审中-公开
    微流控阀系统

    公开(公告)号：US20150093838A1

    公开(公告)日：2015-04-02

    申请号：US14503955

    申请日：2014-10-01

    申请人： James P. Landers ,  Yiwen Ouyang ,  Jingyi Li

    发明人： James P. Landers ,  Yiwen Ouyang ,  Jingyi Li

    IPC分类号： B01L3/00 ,  B32B38/00 ,  B32B38/10 ,  B32B37/18

    CPC分类号： B01L3/502746 ,  B01L3/502707 ,  B01L3/50273 ,  B01L3/502738 ,  B01L2200/0605 ,  B01L2300/0887 ,  B01L2300/165 ,  B01L2400/0406 ,  B01L2400/0409 ,  B01L2400/0487 ,  B01L2400/0688 ,  B01L2400/088 ,  B32B38/10 ,  B32B38/145 ,  B32B2307/412 ,  B32B2310/0843 ,  Y10T436/2575

    摘要： A microfluidic device having a chip defining fluid channels and having toner patches printed within the channels. The toner patches are printed with hydrophobic toner to apply inertial pressure to fluids travelling through the channels. The density of hydrophobic toner and the dimensions of the toner patch can be varied to alter the inertial pressure applied to the fluid. The chip can be rotated about a rotational axis to apply external pressure to fluids sufficient to overcome the inertial pressure created by the toner patch to push fluid past the toner patch. The rotational speed of the chip can be varied to facilitate movement of fluid through the channels and to push fluid past the hydrophobic toner patches.

    摘要翻译： 一种微流体装置，其具有限定流体通道的芯片，并且具有印刷在通道内的调色剂贴片。 调色剂贴片用疏水性调色剂打印，以对流过通道的流体施加惯性压力。 可以改变疏水调色剂的密度和调色剂贴片的尺寸以改变施加到流体的惯性压力。 芯片可以围绕旋转轴线旋转，以将足够的外部压力施加到足以克服由调色剂贴片产生的惯性压力以推动流体经过调色剂贴片。 可以改变芯片的旋转速度以促进流体通过通道的移动并推动流体超过疏水调色剂贴片。