公开(公告)号：US20230401342A1

公开(公告)日：2023-12-14

申请号：US18209785

申请日：2023-06-14

Applicant: Worcester Polytechnic Institute

Inventor： Shahin Tajik ,  Patrick Schaumont ,  Tahoura Mosavirik

IPC: G06F21/88 ,  G06F21/76 ,  G06F21/57

CPC classification number: G06F21/88 ,  G06F21/76 ,  G06F21/57

Abstract: A method for detecting physical attacks on a computing device includes embedding a sensor or FPGA (Field Programmable Gate Array) on a circuit board for gathering a frequency response of a power distribution network providing power to the circuit board. During operation of the circuit board, the sensor identifies and gathers a frequency response suspected of resulting from a tamper effort, and compares the identified frequency response to a frequency response of tempering events. Based on the comparison, a determination of tampering is made.

公开(公告)号：US11827998B2

公开(公告)日：2023-11-28

申请号：US17330922

申请日：2021-05-26

Applicant: Worcester Polytechnic Institute

Inventor： Yan Wang ,  Xiaotu Ma ,  Eric Gratz ,  Jinzhao Fu ,  Panawan Vanaphuti

IPC: C30B1/02 ,  C30B1/12 ,  C30B29/22 ,  H01M4/525 ,  H01M10/54 ,  H01M4/505 ,  H01M4/02

CPC classification number: C30B1/02 ,  C30B1/12 ,  C30B29/22 ,  H01M4/505 ,  H01M4/525 ,  H01M10/54 ,  H01M2004/028

Abstract: A recycling and synthesis of charge material for secondary batteries generates single-crystal charge materials for producing batteries with greater charge cycle longevity. Charge material particles undergo a heating for fusing or enhancing grain boundaries between polycrystalline particles. The resulting, more well-defined grain boundaries are easily etched by a relatively weak mineral acid solution. The acid solution removes material at the grain boundaries to separate secondary particles into primary particles along the grain boundaries. The resulting single crystal (monocrystalline) charge material particles are washed and filtered, and typically re-sintered to accommodate any needed lithium (lithium carbonate), and result in a charge material with larger surface area, higher lithium diffusivity and lower cation ordering.

公开(公告)号：US20230372034A1

公开(公告)日：2023-11-23

申请号：US18199218

申请日：2023-05-18

Applicant: BOSTON SCIENTIFIC SCIMED, INC. ,  WORCESTER POLYTECHNIC INSTITUTE

Inventor： AVNISH SACHAR ,  ANNE GU ,  CHRISTOPHER J. NYCZ ,  FARID TAVAKKOLMOGHADDAM ,  HANNAH R. BAEZ ,  ADITYA AMBANI ,  PARIS MARKS SAINT-PREUX ,  JAMES WELDON

IPC: A61B34/30 ,  A61B17/00

CPC classification number: A61B34/30 ,  A61B17/00 ,  A61B2017/003

Abstract: A steerable medical device includes a handle and an elongate shaft extending distally from the handle to a distal tip. A motor control assembly including a motor control housing is configured to detachably interface with the handle. The motor control assembly includes a first drive assembly and a second drive assembly disposed within the motor control housing. The motor control assembly includes an input device and a controller that is operably coupled with the first drive assembly, the second drive assembly and the input device. The controller is configured to control operation of the first drive assembly and/or the second drive assembly in order to move the distal tip, receive one or more user inputs from a user via the input device, and to modify operation of the first drive assembly and/or the second drive assembly in accordance with the received one or more inputs.

公开(公告)号：US11769916B2

公开(公告)日：2023-09-26

申请号：US17964555

申请日：2022-10-12

Applicant: Worcester Polytechnic Institute ,  Ascend Elements, Inc.

Inventor： Yan Wang ,  Diran Apelian ,  Haiyang Zou

IPC: H01M10/54 ,  C22B7/00 ,  C22B3/00 ,  C22B26/22 ,  C22B1/24

CPC classification number: H01M10/54 ,  C22B1/24 ,  C22B7/007 ,  C22B23/043 ,  C22B23/0423 ,  C22B23/0438 ,  C22B26/22

Abstract: Cathode material from exhausted lithium ion batteries are dissolved in a solution for extracting the useful elements Co (cobalt), Ni (nickel), Al (Aluminum) and Mn (manganese) to produce active cathode materials for new batteries. The solution includes compounds of desirable materials such as cobalt, nickel, aluminum and manganese dissolved as compounds from the exhausted cathode material of spent cells. Depending on a desired proportion, or ratio, of the desired materials, raw materials are added to the solution to achieve the desired ratio of the commingled compounds for the recycled cathode material for new cells. The desired materials precipitate out of solution without extensive heating or separation of the desired materials into individual compounds or elements. The resulting active cathode material has the predetermined ratio for use in new cells, and avoids high heat typically required to separate the useful elements because the desired materials remain commingled in solution.

公开(公告)号：US20230217295A1

公开(公告)日：2023-07-06

申请号：US18080356

申请日：2022-12-13

Applicant: Worcester Polytechnic Institute

Inventor： Kaveh Pahlavan

IPC: H04W28/02 ,  H04W28/08

CPC classification number: H04W28/0236 ,  H04W28/0983

Abstract: A spectrum management database and server provides measurement and modeling of RF (Radio Frequency) cloud interference in near real-time results for efficient utilization of the precious spectrum. This shared spectrum defines a scarce resource shared among all wireless devices of the universe in frequency, time, and space. Near real-time forecasting of the RF cloud interference is beneficial in pursuit of a path to the optimal utilization of spectrum and a liberated spectrum management. A spectrum management server gathers interference information including bandwidth ranges and locations from a plurality of deployed devices, receives requests for bandwidth, and satisfies the request by allocating a non-interfering bandwidth at a requesting location based on the stored indications

公开(公告)号：US20230117517A1

公开(公告)日：2023-04-20

申请号：US17943548

申请日：2022-09-13

Applicant: Worcester Polytechnic Institute

Inventor： Nima Rahbar ,  Suzanne F. Scarlata ,  Shuai Wang

IPC: C04B26/02 ,  C04B14/06 ,  C04B24/14 ,  C04B14/30

Abstract: Materials and methods for a rapid and effective way to create a carbon negative self-healing construction material are described. The construction material uses sand aggregates, a trace amount of catalyst, a small dosage of scaffolding material with a crosslinking agent, and a calcium source. The curing is performed at a high temperature for a short period or at room temperature for a long period. The catalyst-driven method to bridge the sand particles results in a dense, stiff, strong, and tough structural material, which upon exposure to calcium source and CO2 heals itself repeatably.

公开(公告)号：US11627933B2

公开(公告)日：2023-04-18

申请号：US17083776

申请日：2020-10-29

Applicant: Worcester Polytechnic Institute

Inventor： Haichong Zhang ,  Ryosuke Tsumura ,  Yichuan Tang

IPC: A61B8/00 ,  A61B8/08 ,  A61B8/12

Abstract: A Ring-Arrayed Forward-viewing (RAF) ultrasound imaging and administration device combines an ultrasonic (US) US imager including a plurality of single element transducers arranged in a circular frame to define a ring array, and an instrument posture tracking circuit coupled to the ring array for performing RF (radio frequency) data acquisition with the plurality of ring-arrayed transducers. A needle holster is concentrically disposed in the ring array and is adapted to receive and direct an insertion instrument such as a needle, probe or extraction tool along an axis defined by a center of the ring array directed by the concentric needle holster. The tracking circuit includes a processor having instructions for instrument posture tracking and US imaging.

公开(公告)号：US11622596B2

公开(公告)日：2023-04-11

申请号：US16592868

申请日：2019-10-04

Applicant: Worcester Polytechnic Institute

Inventor： Christopher A. Brown ,  Winton Parker ,  James J. Muller ,  Abigale McAdams ,  Pedro D. Oporto ,  Josephine Bowen ,  Sarah Duquette ,  Eric Motler ,  Tristin J. Carlton ,  Nicholas Workman ,  Michael Doyle ,  Jessica Shelsky ,  Jessica K. Y. Cheu ,  Lorenzo M. Dube ,  Olivia G. Steen ,  Andrew R. Vickery

IPC: A43B13/18 ,  A43B7/148 ,  A43B13/12 ,  A43B7/1445 ,  A43B7/144

Abstract: A force absorbing device for a footwear appliance includes a shoe upper and a shoe sole having a planar sole surface, such that forces between the shoe upper and planar sole surface in ground contact are absorbed by force mitigation assemblies disposed in the shoe sole. A force mitigation assembly adapted for an athletic shoe includes a linkage to a wearer interface responsive to movement based on activity of the wearer. An attachment to a sole surface receives ground forces transmitted from frictional contact between the sole surface and a surface against which the sole is disposed, such as for running, turning, etc. A force mitigation assembly absorbs these forces received from the sole surface for directing the received force in a controlled manner. An elastic field in the force mitigation assembly is defined by a resilient material adapted to deform in response to the received force.

公开(公告)号：US20230088399A1

公开(公告)日：2023-03-23

申请号：US17949469

申请日：2022-09-21

Applicant: Worcester Polytechnic Institute Road

Inventor： Jamal S. Yagoobi ,  Mengqiao Yang

IPC: F26B23/04

Abstract: An electrohydrodynamic (EHD) drying apparatus includes a non-uniform electric field resulting from an electric field source operable for a high potential, and an electric field source operable for a low potential. A power source is connected to the electric field sources for producing the non uniform electric field for inducing dielectrophoresis (DEP) in an article within the uniform electric field. In particular configurations, the applied non-uniform electric field is for separating a vapor phase being formed during drying from the liquid phase. The electric field source defines a polarizer adapted to produce dielectrophoresis, and the electric field induces coupled electrostatics and momentum for disposing liquid towards the high electric field for drying.

公开(公告)号：US11471565B2

公开(公告)日：2022-10-18

申请号：US15258666

申请日：2015-03-09

Applicant: CASE WESTERN RESERVE UNIVERSITY ,  WORCESTER POLYTECHNIC INSTITUTE

Inventor： Eben Alsberg ,  Anna D. Dikina ,  Marsha W. Rolle

IPC: A61L27/38 ,  A61L27/54 ,  C12N5/00

Abstract: A modular engineered tissue construct includes a plurality of fused self-assembled, scaffold-free, high-density cell aggregates. At least one cell aggregate includes a plurality of cells and a plurality of biocompatible and biodegradable nanoparticles and/or microparticles that are incorporated within the cell aggregates. The nanoparticles and/or microparticles acting as a bulking agent within the cell aggregate to increase the cell aggregate size and/or thickness and improve the mechanical properties of the cell aggregate as well as to deliver bioactive agents.