公开(公告)号：US20230041555A1

公开(公告)日：2023-02-09

申请号：US17392898

申请日：2021-08-03

Applicant: Khalifa University of Science and Technology ,  Korea University Research and Business Foundation

Inventor： Daniel CHOI ,  Hammad YOUNES ,  Ru LI ,  Young Keun KIM

IPC: H05K9/00 ,  C04B41/50 ,  C04B35/26

Abstract: A device and method for absorbing electromagnetic waves can include a honeycomb sheet formed by a plurality of interconnected hexagon cells arranged in rows. The hexagon cells are made up of sidewalls, each sidewall formed by two surfaces that converge at a top of the sidewall and diverge from the top to a bottom of the sidewall such that a thickness of the sidewalls increases from top to bottom and an angle forms between the two surfaces at the top of the sidewall. In an example, the angle is about 8 degrees. The honeycomb sheet can be coated with a magnetic, composite coating to increase electromagnetic shielding. An example coating includes magnetic multi-granular nanoclusters (MGNC) and multi-walled carbon nanotubes (MWCNT). A base layer can be attached to the honeycomb sheet for mechanical stability and additional absorption. The device is suitable for radar absorbing materials (RAM) for aerospace and military applications.

公开(公告)号：US20230030684A1

公开(公告)日：2023-02-02

申请号：US17870682

申请日：2022-07-21

Applicant: Khalifa University of Science and Technology

Inventor： TieJun Zhang ,  Faisal Al Marzooqi ,  Hongxia Li ,  Aikifa Raza ,  Afra Saeed Alketbi ,  Abdulrahman Outhman Kharbatli

IPC: B29C64/124 ,  B01D71/06 ,  B01D71/02 ,  B01D67/00 ,  B33Y10/00 ,  B33Y40/20

Abstract: Three-dimensional printing on a membrane of a filtration device is described herein. Forming the filtration device involves receiving a membrane comprising a porous material, depositing an ink into pores of the porous material, causing the ink to solidify, and continuously building three-dimensional printed structures via micro-stereolithographic three-dimensional printing. Solidifying the ink causes the ink to bond with the membrane.

公开(公告)号：US11550100B2

公开(公告)日：2023-01-10

申请号：US17202729

申请日：2021-03-16

Applicant: GLOBALFOUNDRIES U.S. Inc. ,  KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Yusheng Bian ,  Michal Rakowski ,  Roderick A. Augur ,  Marios Papadovasilakis ,  Sujith Chandran ,  Jaime Viegas ,  Yonas Gebregiorgis

IPC: G02B6/10 ,  G02B6/12 ,  G02B6/26 ,  G02B6/42 ,  G02B6/125 ,  G02B6/13 ,  G02B6/122

Abstract: Structures for a wavelength-division multiplexing filter and methods of forming a structure for a wavelength-division multiplexing filter. A waveguide core of the wavelength-division multiplexing filter includes a first bend having a first curvature and a second bend having a second curvature different than the first curvature. The structure further includes a waveguide core region having a first end surface, a second end surface, and a bend arranged between the first and second end surfaces. The bend is positioned over the first bend of the waveguide core in an overlapping relationship.

公开(公告)号：US20220412836A1

公开(公告)日：2022-12-29

申请号：US17840335

申请日：2022-06-14

Applicant: Khalifa University of Science and Technology

Inventor： Baker MOHAMMAD ,  Khaled Muneer Mutlaq HUMOOD ,  Maguy ABI JAOUDE ,  Sueda SAYLAN

IPC: G01M3/32 ,  G01M3/34

Abstract: Techniques for measuring vacuum pressure using a memristor element are described. A vacuum sensor can include a memristor element having a semiconductor substrate, a memristive material layer, and a conductive electrode. The off-state resistance of the memristor element can be sensitive to changes in ambient pressure at the element. The off-state resistance of the memristor element may also exhibit a well-defined increase at pressures below a threshold pressure. Measurement of the off-state resistance may be obtained with low power consumption and without changing the resistance or switching the state of the memristor element. The measurements may be used to both determine a leak rate of the ambient pressure within the volume of interest and determine if the sensor is exposed to vacuum pressure below the threshold pressure.

公开(公告)号：US20220357594A1

公开(公告)日：2022-11-10

申请号：US17499251

申请日：2021-10-12

Applicant: Khalifa University of Science and Technology

Inventor： Haider BUTT ,  Fahad ALAM

IPC: G02C7/04 ,  G02B1/12 ,  B29D11/00 ,  B33Y80/00

Abstract: A method of forming an ophthalmic contact lens using an additive manufacturing apparatus is presented herein. The method providing a first solution comprising HEMA, PEGDA, and a photoinitiator, forming a support structure on a planar print bed of the additive manufacturing apparatus by depositing a first plurality of layers of the first solution and curing the first plurality of layers, and forming an ophthalmic contact lens on the support structure by depositing a second plurality of layers of the first solution and curing the second plurality of layers. The second plurality of layers are arranged such that a disc of the ophthalmic contact lens is oriented generally perpendicular to the planar print bed of the additive manufacturing apparatus.

公开(公告)号：US20220333453A1

公开(公告)日：2022-10-20

申请号：US17640900

申请日：2020-09-03

Applicant: Khalifa University of Science and Technology ,  Abu Dhabi National Oil Company

Inventor： James MCELHINNEY ,  Ayesha ALMARZOOQI ,  Jorge Salgado GOMES

IPC: E21B25/02 ,  E21B23/02 ,  E21B43/12 ,  E21B49/08

Abstract: Embodiments include a core plug holding apparatus including a tubular member configured to be inserted into a side pocket of a mandrel, the tubular member having an uphole end, a downhole end, and a core plug section located between the uphole end and the downhole end, wherein the core plug section is used for housing of one or more core plug samples and wherein tubular member includes one or more orifices formed in the core plug section. Embodiments include a method of sampling a well including deploying one or more core plug holding apparatuses into one or more side pocket mandrels of a completion; holding the one or more core plug holding apparatuses in the one or more side pocket mandrels for an incubation period; and retrieving the one or more core plug holding apparatuses from the one or more side pocket mandrels after the passage of the incubation period.

公开(公告)号：US20220290540A1

公开(公告)日：2022-09-15

申请号：US17633575

申请日：2020-09-09

Applicant: Khalifa University of Science and Technology

Inventor： Emad Walid AL SHALABI

IPC: E21B43/16

Abstract: Polymer flooding models for carbonate reservoirs and related methods include the trapping number effect on residual oil saturation. A method for predicting oil recovery from a reservoir using enhanced oil recovery techniques can include simulating the reservoir in a computer simulation (202). Injection of a fluid (204) can be simulated in the computer simulation and an enhanced oil recovery technique can be simulated to simulate the oil recovery from die reservoir (206).

公开(公告)号：US20220275719A1

公开(公告)日：2022-09-01

申请号：US17632051

申请日：2020-07-20

Applicant: Khalifa University of Science and Technology

Inventor： Ali ALSUMAITI ,  Abdul Ravoof SHAIK ,  Abdul Khader JILANI ,  Moussa TEMBELY ,  Waleed Salem ALAMERI

IPC: E21B47/002 ,  G01N33/24 ,  G06T7/00

Abstract: There is provided a system and process to predict the petrophysical properties of unclean rock samples using Medical-CT scanned three-dimensional (3D) images at both low and high resolutions. The captured 3D images are passed through machine learning, statistical methods and data lookups to identify the petrophysical properties of rock samples. Also disclosed is the process of measuring phase saturations of a clean rock sample or porous medium using Micro-CT scanned three-dimensional (3D) images.

公开(公告)号：US20220237437A1

公开(公告)日：2022-07-28

申请号：US17581767

申请日：2022-01-21

Applicant: Khalifa University of Science and Technology

Inventor： Hasan AL-MARZOUQI ,  Lyes Saad Saoud

IPC: G06N3/04

Abstract: Methods and systems for implementing sedenion value neural network models are provided. A method includes obtaining, from a data store or a user device, values associated with a feature for which a value is to be determined. The method includes generating an input sedenion using the values and inputting the input sedenion to a sedenion value neural network (SVNN) model configured to generate an output sedenion using the input sedenion. The output sedenion may indicate a sedenion representation of the value to be determined. The method includes generating a sequence of real values using the output sedenion. The sequence may be or include the value. The method also includes outputting, to the data store or to the user device, the sequence of real values.

公开(公告)号：US20220215126A1

公开(公告)日：2022-07-07

申请号：US17601145

申请日：2019-04-03

Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY ,  BRITISH TELECOMMUNICATIONS PLC ,  EMIRATES TELECOMMUNICATIONS CORPORATION

Inventor： Abdelrahman Ali ALMAHMOUD ,  Ernesto DAMIANI ,  Hadi OTROK ,  Yousof Ali ALHAMMADI

IPC: G06F21/62 ,  G06F21/60 ,  G06K9/62

Abstract: A computer-implemented method of preparing an anonymised dataset for use in data analytics. The method includes the steps of: (a) labelling elements of a dataset to be analysed according to a labelling scheme; (b) selecting one or more labelled elements of the dataset to be replaced with a distance preserving hash; and for each selected element: (c) partitioning a data plane including the selected element into a plurality of channels, each channel covering a different distance space of the data plane; (d) hashing, using a cryptographic hash, data associated with the channel of the data plane in which the selected element resides, to form the distance preserving hash; and (e) replacing the selected element with the distance preserving hash.