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    Molten metal inclusion testing
    111.
    发明授权
    Molten metal inclusion testing 有权

    公开(公告)号：US10753878B2

    公开(公告)日：2020-08-25

    申请号：US16136232

    申请日：2018-09-19

    Applicant: Worcester Polytechnic Institute

    Inventor： Shaymus W. Hudson ,  Diran Apelian ,  Robert DeSaro ,  Joseph C. Craparo

    IPC: G01N21/94 ,  G01N21/71

    Abstract: A molten metal inclusion test apparatus includes a spectroscopic appliance for gathering data indicative of the contents of a quantity of molten metal. Laser induced emissions provide spectral data based on the elements present in the melt. Analysis of a series of samplings, or “shots” of laser induced emissions indicates a presence of elements above a background or expected level. These elements appear as spikes in a graphical rendering of the spectral data, defined by a wavelength of the detected element. Correlation of the elements detected in the same shot indicates a composition of the inclusion, typically a particle of an extraneous compound in the melt. Such spectral analysis provides immediate feedback about melt quality, allowing corrective measures to be taken prior to casting.

    Multi-band heat flux gauge
    112.
    发明授权
    Multi-band heat flux gauge 有权

    公开(公告)号：US10564041B2

    公开(公告)日：2020-02-18

    申请号：US15422817

    申请日：2017-02-02

    Applicant: Worcester Polytechnic Institute

    Inventor： Samim Safaei Boroojeny

    IPC: G01J5/60

    Abstract: A noncontact temperature sensing device receives radiative emissions from a sensed object to measure radiant heat flux and computes a temperature using multiple photodiode sensors, or elements, each sensitive to a different bandwidth of near IR light. The device samples a fluctuating heat source such as a flame or explosion at a fast sampling frequency, and compares corresponding or simultaneous readings in each bandwidth for computing a ratio of the respective bands and determining a temperature via ratio pyrometry. Multiple sensors of adjacent bands each receive corresponding readings of near IR emissions, perform fast, concurrent sampling to mitigate inconsistencies of heat source fluctuations, and compute a temperature based on a ratio between the sampled readings of the different bands. Near IR detection allows common and inexpensive photodiodes to be employed, and the photoelectric rather than thermoelectric sensing allows faster sampling and at a greater distance from the sensed heat source.

    ACTUATORS AND METHODS OF USE
    113.
    发明申请
    ACTUATORS AND METHODS OF USE 审中-公开

    公开(公告)号：US20200038280A1

    公开(公告)日：2020-02-06

    申请号：US16541414

    申请日：2019-08-15

    Applicant: Worcester Polytechnic Institute

    Inventor： Marko Popovic ,  Cagdas Onal ,  Daniil Effraimidis ,  Brian Jennings ,  Gregory D. McCarthy ,  Nicholas Corso

    IPC: A61H3/00 ,  F15B15/10 ,  A61F2/68 ,  A61H1/02

    Abstract: Actuators and methods of use are provided. An actuator may include an inner member made from an elastic material and defining a compartment for receiving an actuating fluid, the inner member being moveable in a longitudinal direction from a relaxed state to an expanded state by introducing an actuating fluid into the inner member, and an outer member made from an inelastic material and being disposed around the elastic inner member to control expansion of the elastic inner member in a radial direction, the outer member being moveable from a folded relaxed configuration to an unfolded extended configuration as the inner member moves from the relaxed state to the expanded state, wherein the movement of the actuator between the relaxed state and the expanded state causes a movement of a structure to which the actuator is attached.

    Mobile blood alcohol content and impairment sensing device
    115.
    发明授权
    Mobile blood alcohol content and impairment sensing device 有权

    公开(公告)号：US10539549B2

    公开(公告)日：2020-01-21

    申请号：US15783414

    申请日：2017-10-13

    Applicant: WORCESTER POLYTECHNIC INSTITUTE

    Inventor： Emmanuel Agu ,  Christina Aiello

    IPC: G01N33/497 ,  G01N33/98 ,  A61B5/00 ,  A61B5/145 ,  A61B5/11 ,  A61B5/024

    Abstract: In a mobile sensing device, a method of detecting blood alcohol content includes receiving time-series gait data from at least one sensor of the mobile sensing device as a user walks and detecting a set of attributes associated with the time-series gait data, each attribute of the set of attributes related to the user's gait. The method includes comparing the set of attributes with a machine learning classification model learned from a training data set of attributes to determine at least one of a blood alcohol content range of the user and an impairment level of the user and outputting a notification associated with the at least one of the blood alcohol content range of the user and the impairment level of the user.

    VANADIUM RECOVERY METHOD
    120.
    发明申请
    VANADIUM RECOVERY METHOD 审中-公开

    公开(公告)号：US20180297856A1

    公开(公告)日：2018-10-18

    申请号：US15916668

    申请日：2018-03-09

    Applicant: Worcester Polytechnic Institute

    Inventor： Myungwon Jung ,  Brajendra Mishra

    IPC: C01G31/02 ,  C22B34/22 ,  C22B5/10

    Abstract: A vanadium recovery approach utilizes oil fly ash (OFA), in contrast to coal fly ash, for separation and recovery of vanadium. OFA is first carbon burned to reduce the volume for recycling, and also to provide a fuel for other industrial processes. Following an almost 90% weight reduction from carbon burning, the remaining material includes about 18% vanadium. A salt roasting performed at the same temperature (about 650° C.) as the carbon burning allows use of the same oven or furnace, reducing heat requirements for the overall process. Salt roasting generates a water-soluble material from which a water leaching process yields a vanadium leach solution containing recovered vanadium, avoiding a need for caustic or volatile leaching agents. Ammonium metavanadate is precipitated from the vanadium leach solution through addition of ammonium sulfate, and a calcination process used to generate vanadium oxide (V2O5).

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