中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

358 records (took 0.029 seconds)

    BAUXITE RESIDUE RECYCLING
    341.
    发明申请
    BAUXITE RESIDUE RECYCLING 审中-公开

    公开(公告)号：US20190040494A1

    公开(公告)日：2019-02-07

    申请号：US16030041

    申请日：2018-07-09

    Applicant: Worcester Polytechnic Institute

    Inventor： Marion H. Emmert ,  Remya P. Narayanan

    IPC: C22B59/00 ,  C22B7/00

    Abstract: Recovery of scandium from mined red mud includes adding an acid to a quantity of red mud for converting oxides in the red mud, and roasting the quantity of red mud for decomposing compounds having low thermal stability, typically iron and titanium. Water is added to the roasted red mud for leaching the converted oxides into a leach liquor mixture including scandium and other dissolved rare earths, and the leach liquor mixture is agitated by sonication or ball milling to increase an exposed surface area of red mud particles in the leach liquor. PH of the leach liquor is adjusted to precipitate the rare earths while leaving the scandium in solution in the leach liquor, followed by precipitating the separated scandium oxalate remaining in the leach liquor by reducing the pH and adding oxalic acid. Precipitated scandium oxalate may then be filtered from the leach liquor.

    Inquiry skills tutoring system
    342.
    发明授权
    Inquiry skills tutoring system 有权

    公开(公告)号：US10186168B2

    公开(公告)日：2019-01-22

    申请号：US15388295

    申请日：2016-12-22

    Applicant: Worcester Polytechnic Institute

    Inventor： Janice D. Gobert ,  Michael A. Sao Pedro ,  Cameron Guerra Betts ,  Ryan S. Baker

    IPC: G09B19/00 ,  G06N5/02 ,  G09B5/02 ,  G09B7/02 ,  G09B5/00 ,  G06Q10/06

    Abstract: An assessment engine includes a definition of inquiry skills being assessed. Assessment models are used to infer skill demonstration as one or more students engage in inquiry within computerized simulations and/or microworlds. A pedagogical agent and/or help system provides real-time feedback to one or more students based on the assessment model outputs, and/or based on additional models that track one or more students developing proficiency across inquiry tasks over time. A pedagogical agent and/or help system for science inquiry tutoring responds in real-time on the basis of knowledge-engineered and data-mined assessment and/or tracking models.

    MULTI-MODE LOAD ABSORBING SKI BINDING
    344.
    发明申请
    MULTI-MODE LOAD ABSORBING SKI BINDING 审中-公开

    公开(公告)号：US20180296902A1

    公开(公告)日：2018-10-18

    申请号：US15952451

    申请日：2018-04-13

    Applicant: Worcester Polytechnic Institute

    Inventor： Jacob J. Billington ,  Jonathan D. Comden ,  Sean J. Regan ,  Thomas C. Roberti ,  Christopher A. Brown

    IPC: A63C9/084 ,  A63C9/00

    Abstract: A ski binding reduces a likelihood of injury to the anterior cruciate ligament (ACL) and the tibia is accomplished by absorption in the binding to limit loads transmitted through the boot-binding interface. Release based on an injury threshold includes a binding response tower attached to the ski and adapted for selective engagement with the ski, such that the binding response tower permits biased vertical and lateral horizontal displacement, prior to a release threshold. The binding is in communication with the boot heel and is adapted for slideable engagement in response to vertical and lateral forces exerted from the boot heel. The binding response tower adapted to disengage, or release upon reaching at least one a predetermined lateral displacement or a predetermined vertical displacement, such as when the boot heel is forced sufficiently sideways or upwards due to skier movement that would tend to cause an ACL injury.

    Variable stiffness devices and methods of use
    346.
    发明授权
    Variable stiffness devices and methods of use 有权

    公开(公告)号：US10028855B2

    公开(公告)日：2018-07-24

    申请号：US15154443

    申请日：2016-05-13

    Applicant: Worcester Polytechnic Institute

    Inventor： Marko Popovic ,  Saivimal Sridar ,  Corey Majeika ,  Nicholas Deisadze ,  Erika Giancarlo

    IPC: A61F5/05 ,  A61F5/058

    Abstract: Variable stiffness devices and methods of their use are provided. In some embodiments, a variable stiffness device comprises an inner member defining a compartment for receiving an actuating fluid; an outer member disposed around the inner member; and a granular medium disposed between the inner member and the outer member; wherein the inner member is being moveable in a radial direction from a relaxed state to an expanded state by introducing the actuating fluid into the compartment of the inner member to compress the granular medium against the outer member to increase the stiffness of the device.

    Detection and monitoring of atrial fibrillation
    347.
    发明授权
    Detection and monitoring of atrial fibrillation 有权

    公开(公告)号：US09986921B2

    公开(公告)日：2018-06-05

    申请号：US14702601

    申请日：2015-05-01

    Applicant: Worcester Polytechnic Institute

    Inventor： Ki H. Chon ,  Jowoon Chong

    IPC: A61B5/02 ,  A61B5/024 ,  A61B5/00 ,  A61B5/0464

    CPC classification number: A61B5/02405 ,  A61B5/0464 ,  A61B5/6898 ,  A61B5/7282

    Abstract: A real-time arrhythmia discrimination method is used in smartphones, which can discriminate between NSR, AF, PACs and PVCs using pulsatile time series collected from a smartphone's camera. To increase the sensitivity of AF detection and add the new capabilities of PVC and PAC identification, the arrhythmia discrimination method of these teachings combines Root Mean Square of Successive RR Differences (RMSSD), Shannon Entropy (ShE) and turning point ratio (TPR), with the Poincare plot, and utilizes the features of pulse rise/fall time and amplitude for arrhythmia discrimination.

Patent Agency Ranking