公开(公告)号：US10647617B2

公开(公告)日：2020-05-12

申请号：US15903565

申请日：2018-02-23

Applicant: Worcester Polytechnic Institute

Inventor： Nima Rahbar ,  Suzanne Frances Scarlata ,  Jessica Anne Rosewitz

IPC: C04B41/50 ,  C04B41/65 ,  C04B41/45 ,  C12P3/00 ,  C12N9/88 ,  C04B41/00 ,  C04B111/72 ,  C04B103/00

Abstract: An aqueous solution of carbonic anhydrase and calcium chloride is contacted with a cementitious surface defining at least one opening or fissure in the presence of ambient carbon dioxide to thereby cause the calcium chloride and carbon dioxide to react, whereby calcium carbonate precipitate from the solution and seals the opening or fissure.

公开(公告)号：US10603005B2

公开(公告)日：2020-03-31

申请号：US15924946

申请日：2018-03-19

Applicant: Worcester Polytechnic Institute

Inventor： Travis F. Henchie ,  Karen L. Troy

IPC: A61B5/00 ,  A61B6/00 ,  A61B6/03 ,  G06T7/00 ,  G06T19/20 ,  G06T19/00

Abstract: In some embodiments, a method for determining a deformity in a bone surface comprises performing a scan of a healthy bone and a diseased bone; creating 3-dimensional (3D) representations of a current surface of the diseased bone; constructing an estimated healthy surface in 3D for the diseased bone based on the surface of the healthy bone; and identifying a deformity in the diseased bone by comparing the estimated healthy surface to the current surface of the diseased bone. In some embodiments, the scan is performed using high resolution peripheral quantitative computed tomography (HR-pQCT).

公开(公告)号：US10551923B2

公开(公告)日：2020-02-04

申请号：US15586684

申请日：2017-05-04

Applicant: Worcester Polytechnic Institute

Inventor： Saraj Pirasmepulkul ,  Alexander Caracappa ,  Peerapat Luxsuwong ,  Cagdas D. Onal ,  William Michalson ,  Tri Khuu ,  Ming Luo

IPC: G06F19/00 ,  G06F3/01 ,  G06F3/0484

Abstract: A toroidal actuator is responsive to a teleoperator for providing haptic feedback responsive to a curvature or articulated movement applied to a gripped object. The toroidal actuator surrounds an operator member such as a finger, and is responsive to pneumatic pressure for increasing telepresence force defined by resistance encounter against a teleoperated robotic claw. As the teleoperated claw grips an object, increased pneumatic pressure in the toroidal actuator tends to elongate the toroidal shape in a linear manner and oppose a curvature force applied by an inserted operator finger. Resistive force is based on soft sensing of the gripped object, thus the toroidal actuator applies an increasing resistive force to curvature as the robotic claw closes around a gripped object by solenoid regulated air pressure. A typical assembly includes at least 3 toroidal actuators for two digits and a thumb of an operator.

公开(公告)号：US20190392099A1

公开(公告)日：2019-12-26

申请号：US16451612

申请日：2019-06-25

Applicant: WORCESTER POLYTECHNIC INSTITUTE

Inventor： Siddhant Pandey ,  Sathwik Bharadwaj Daralagodu Dattatreya Jois ,  Lakshminarayanapuram Ramdas Ram-Mohan

IPC: G06F17/50

Abstract: Embodiments of the innovation relate to, in a modeling apparatus, a method of identifying electromagnetic behavior of an electronic component. The method includes receiving, by the modeling apparatus, geometric design criteria and material property criteria for the component; defining, by the modeling apparatus, a set of finite elements representing the component based upon the geometric design criteria and material property criteria; applying, by the modeling apparatus, a Hermite finite element method function to each finite element to define an electromagnetic field for each finite element; applying, by the modeling apparatus, a divergence-free condition at each node of each finite element to define an electromagnetic field at each node; and based upon application of the Hermite finite element method function and the divergence free condition to generate the electromagnetic fields, generating, by the modeling apparatus, a model of the electromagnetic behavior of the component.

公开(公告)号：US10416684B2

公开(公告)日：2019-09-17

申请号：US15492161

申请日：2017-04-20

Applicant: Worcester Polytechnic Institute

Inventor： Richard T. Eberheim ,  Nicholas F. Hassan ,  Joshua C. O'Connor

IPC: G05D1/10 ,  B64B1/46 ,  B64C31/02 ,  B64C39/02 ,  B64D45/04 ,  G05D1/06 ,  B64C19/00

Abstract: The airborne vehicle recovery method and apparatus enables radiosonde users to reliably recover launched radiosondes and provides new and unique opportunities for research and data acquisition with balloon launched radiosondes. Airborne vehicles such as radiosondes are disposed in a flight body adapted for propulsionless, gliding navigation for returning to one of several designated landing sites for recovery. Onboard electronics including a navigation computer, flight computer, and lightweight battery are employed for selecting a landing site, computing a heading and direction, and actuating flaps for pursuing a propulsionless, gliding path to the landing site. Gliding is directed only by right and left flaps responsive to respective actuators, such that the inclusion of only the actuators, navigation and flight electronics, and without active propulsion, enables sufficient gliding range from the lightweight construction and arrangement to reach one of several landing sites for effecting substantial recovery rates of the radiosondes.

公开(公告)号：US10397225B2

公开(公告)日：2019-08-27

申请号：US15247471

申请日：2016-08-25

Applicant: Worcester Polytechnic Institute

Inventor： Craig A. Shue

IPC: H04L29/06 ,  H04W72/04 ,  H04L29/08 ,  H04L12/801 ,  H04L12/927 ,  H04W88/12

Abstract: Embodiments of the innovation relate to, in an access controller, a method for providing access to a network resource. The method includes receiving, by the access controller, a network access request and user interaction information associated with the network access request from the client device, the user access information received with the network access request from the client device. The method includes comparing, by the access controller, the user interaction information with a policy corresponding to the user interaction information. The method includes providing communication, by the access controller, between the client device and the network resource associated with the network access request in response to detecting an association between the user interaction information and the policy.

公开(公告)号：US20190212355A1

公开(公告)日：2019-07-11

申请号：US16240720

申请日：2019-01-05

Applicant: Worcester Polytechnic Institute

Inventor： Dirk Albrecht ,  Ross Lagoy

IPC: G01N35/10 ,  B01L3/00

CPC classification number: G01N35/1072 ,  B01L3/502715 ,  B01L3/502738 ,  B01L2300/0829 ,  G01N35/1011 ,  G01N35/1016 ,  G01N35/1097

Abstract: Systems and methods for delivering fluid to a microfluidic device is provided. The system includes a multi-well plate having a plurality of wells and an inlet tube having a first end being in communication with the one or more wells of the multi-well plate and a second end being in communication with a microfluidic device. The first end of the inlet tube is moveable between the plurality of wells of the multi-well plate to deliver fluid to the microfluidic device from the plurality of wells of the multi-well plate.

公开(公告)号：US20190177178A1

公开(公告)日：2019-06-13

申请号：US16213243

申请日：2018-12-07

Applicant: Worcester Polytechnic Institute

Inventor： Sumedh Gostu ,  Brajendra Mishra

IPC: C01G49/08 ,  C22B3/16 ,  C07F15/02

Abstract: A low-temperature leaching operation employs a raw, red mud slurry directly from aluminum production for an oxalic acid leaching of ferric oxalate. Residual calcium, titanium, aluminum and other rare earths are also recoverable in a secondary stream. Monitoring and control of the pH of the leach solution yields soluble ferric oxalate without high temperatures or specific radiation or light sources. Addition of iron powder results in precipitation of ferrous oxalate, isolated by magnetic separation from the iron powder which recirculates in the solution. Magnetite may then be produced by heating the ferrous oxalate in low pO2 conditions.

公开(公告)号：US10307962B2

公开(公告)日：2019-06-04

申请号：US14611335

申请日：2015-02-02

Applicant: Worcester Polytechnic Institute

Inventor： Steven Van Dessel

IPC: H04N1/00 ,  B29C39/12 ,  B29D99/00 ,  B29L31/00 ,  B29L31/10 ,  E04F13/08 ,  G06F17/50 ,  B29C64/386 ,  E04F13/16

Abstract: A three-dimensional (3D) laser-based scan of a façade of a structure is conducted. Based on data of the 3D laser-based scan, a 3D computer model of the façade is generated. Then, a design of insulation to be installed on the façade is determined based on the generated 3D computer model. According to the determined design, insulation is fabricated via an automated fabrication process.

公开(公告)号：US10285601B2

公开(公告)日：2019-05-14

申请号：US15985912

申请日：2018-05-22

Applicant: Worcester Polytechnic Institute

Inventor： Ki H. Chon ,  Jowoon Chong

IPC: A61N5/02 ,  A61B5/024 ,  A61B5/00 ,  A61B5/0464

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.