公开(公告)号：WO2021234600A1

公开(公告)日：2021-11-25

申请号：PCT/IB2021/054330

申请日：2021-05-19

Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： KILANI, Dima ,  MOHAMMAD, Baker

IPC: G06F7/544 ,  H03K19/173 ,  G06N3/08 ,  G06N3/063

Abstract: A system for performing analog multiply-and-accumulate (MAC) operations employs at least one cross coupling capacitor processing unit (C3PU). A system includes a wordline to which an analog input voltage is applied, a voltage supply line having a supply voltage (VDD), a bitline, a clock signal line, a current integrator op-amp connected to the bitline and to the clock signal line, and a C3PU connected to the wordline. The C3PU includes a CMOS transistor and a capacitive unit. The capacitive unit includes a cross coupling capacitor and a gate capacitor. The cross coupling capacitor is connected between the wordline and the gate terminal of the CMOS transistor. The gate capacitor is connected between the gate terminal and ground. The CMOS transistor is configured to conduct a current that is proportional to voltage applied to the gate terminal.

公开(公告)号：WO2021181273A1

公开(公告)日：2021-09-16

申请号：PCT/IB2021/051955

申请日：2021-03-09

Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： BEIG, Balanthi Mogru Abdul Rahiman ,  AHMAD, Anish ,  ALSAWALHI, Jamal ,  AL JAAFARI, Khaled Ali Mohammed Ali

IPC: H02M3/158 ,  B60L53/24

Abstract: A bi-directional DC voltage converter includes a controller, controlled switches, inductors, and capacitors to accomplish DC voltage conversion with minimal input current ripple and high efficiency. The controller is operable in a boost mode in which the switches are independently controlled to convert low-voltage DC power to high-voltage DC power. The controller is operable in a buck mode in which the switches are independently controlled to convert high-voltage DC power to low-voltage DC power.

公开(公告)号：WO2021156767A1

公开(公告)日：2021-08-12

申请号：PCT/IB2021/050873

申请日：2021-02-03

Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： ALKHAZRAJI, Saeed Alhassan ,  HALIQUE, Kevin

IPC: C09K17/40 ,  A01G24/10 ,  A01G24/20

Abstract: Embodiments include an artificial soil composition for supporting plant growth and related methods. The artificial soil composition may include a mixture including at least three of the following components: (a) an iron oxide-containing industrial byproduct; (b) a sulfur- containing industrial byproduct; (c) a sand component; (d) a clay component; (e) a water- soluble polymer component; (f) a nitrogen-phosphorus-potassium (NPK) source; and (g) an organic matter component. Embodiments further include a method of making an artificial soil composition, a method of growing plants in an artificial soil composition, and the like.

公开(公告)号：WO2021048760A1

公开(公告)日：2021-03-18

申请号：PCT/IB2020/058382

申请日：2020-09-09

Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： AL SHALABI, Emad Walid

IPC: E21B47/00 ,  E21B49/00

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：WO2021044343A1

公开(公告)日：2021-03-11

申请号：PCT/IB2020/058217

申请日：2020-09-03

Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： AL WAHEDI, Yasser ,  BASINA, Georgia ,  GABER, Dina Ali ,  GABER, Safa Ali ,  ELMUTASIM, Omer

IPC: B01J35/00 ,  B01J35/10 ,  B01J23/745

Abstract: Embodiments include heterogeneous catalysts for the selective oxidation of hydrogen sulfide to sulfur that may include a mesoporous material including a plurality of voids; and one or more active catalyst nanoparticles at least partially encapsulated in one or more of the plurality of voids. Embodiments further includes methods of catalytic selective oxidation of hydrogen sulfide to sulfur that may include contacting hydrogen sulfide and oxygen in the presence of said heterogeneous catalysts to produce a product stream including sulfur. Embodiments also include methods of making said heterogeneous catalysts and the like.

公开(公告)号：WO2020165724A1

公开(公告)日：2020-08-20

申请号：PCT/IB2020/051011

申请日：2020-02-10

Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： ZWEIRI, Yahya Hashem ,  AL-MAJALI, Yahya Taha

IPC: B64C39/00 ,  B64C39/02 ,  B63G8/00

Abstract: The invention provides for a hybrid unmanned aerial and submersible vehicle (UASV) (100) comprising a fuselage (102), at least one wing structure (104, 106), a propulsion system (116, 118) and an empennage. The said vehicle is capable of operating in air, on water and underwater via its wing tilting mechanism wherein the transition of the vehicle between different mediums is seamless. Further, the wing structures (104, 106) are connected on either side of the fuselage (102), such that each wing (104, 106) tilts about a common lateral axis (360° of freedom), and wherein said tilting depends on the mode of operation of the UASV (100). The vehicle of the present invention further includes a propeller protection system, a landing system, control surfaces, and sensors. The present invention also discloses methods for operating the UASV (100) in multiple mediums.

公开(公告)号：WO2020015813A1

公开(公告)日：2020-01-23

申请号：PCT/EP2018/069289

申请日：2018-07-16

Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY ,  BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY ,  EMIRATES TELECOMMUNICATIONS CORPORATION

Inventor： AWEYA, James

IPC: H04J3/06

Abstract: This invention relates to peer-to-peer transparent clocks and methods of estimating skew in peer-to-peer transparent clocks. Embodiments of the invention relate to techniques for estimating clock skew between a free-running clock in a transparent clock and a master clock, in particular by using the timing information embedded in timing messages passing through the transparent clock. Further embodiments of the invention set out uses of these estimates to modify the residence times computed by the transparent clock and a synchronization network including such transparent clocks.

公开(公告)号：WO2019086938A1

公开(公告)日：2019-05-09

申请号：PCT/IB2017/056918

申请日：2017-11-06

Applicant: ABU DHABI NATIONAL OIL COMPANY ,  KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： AL MARZOUQI, Hasan ,  VEGA, Sandra ,  SUN, Huafeng

IPC: G01N15/08 ,  G06T7/00 ,  G01N23/046

Abstract: A method for determining permeability of a porous medium is described which comprises the steps: a) obtaining a three-dimensional picture of the porous medium by an imaging system, b) dividing the three-dimensional picture into a number n of two-dimensional parallel slices, wherein n is an integer of 2 or more, c) identifying one or more pores in a first outermost slice (n 1 ) using a grid which defines image pixels, d) identifying one or more pores in a second slice (n 2 ) directly neighboring the first outermost slice (n 1 ) using the same grid which defines image pixels as for the first outermost slice (n 1 ), and e) labelling the one or more pores in the second slice (n 2 ) as connected if at least one of its neighbours in the first outermost slice (n 1 ) is a pore to give a number of connected pores as a connectivity result. Also described is a system comprising means for carrying out such a method.

公开(公告)号：WO2018154487A1

公开(公告)日：2018-08-30

申请号：PCT/IB2018/051117

申请日：2018-02-22

Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： CALVET, Nicolas Jean-Michel ,  CARDOZO, Uver Dario Villalobos ,  AL NA’IMI, Khaloud Mohammed ,  HOFFMANN, Jean Francois

IPC: C21C5/54 ,  C04B33/10 ,  C04B33/13 ,  C04B33/132 ,  C04B33/138 ,  C21B3/00 ,  C21B3/04

Abstract: A ceramic and a method of forming a ceramic including milling steel slag exhibiting a diameter of 5 mm of less to form powder, sieving the powder to retain the powder having a particle size in the range of 20 µm to 400 µm, removing free iron from the powder with a magnet, heat treating the powder at a temperature in the range of 700 °C to 1200 °C for a time period in the range of 1 hour to 10 hours and oxidizing retained iron in the powder, compacting the powder at a compression pressure in the range of 20 MPa to 300 MPa, and sintering the powder at a temperature in the range of 700 °C to 1400 °C for a time period in the range of 0.5 hours to 4 hours to provide a ceramic.

公开(公告)号：WO2023067479A1

公开(公告)日：2023-04-27

申请号：PCT/IB2022/059954

申请日：2022-10-17

Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： ZHANG, TieJun ,  ALKETBI, Afra Saeed ,  RAZA, Aikifa

IPC: C08F2/10 ,  C09D11/02 ,  C09D11/101

Abstract: A method of printing a hydrogel-based device includes contacting a monomer, a crosslinker, a photoinitiator, and a precursor salt with a solvent to form an ink solution, printing the ink solution onto a substrate, exposing the ink solution to light, sufficient to form a hydrogel, and contacting the hydrogel with a reducing agent sufficient to precipitate nanoparticles from the precursor salt in the hydrogel.