公开(公告)号：US20230318306A1

公开(公告)日：2023-10-05

申请号：US18188346

申请日：2023-03-22

Applicant: Khalifa University of Science and Technology

Inventor： Tarek Hussein Mostafa ELFOULY ,  Ahmed Abad Daifalla Saleh ALDURRA ,  Hatem Hussein Magdy Mohamed ZEINELDIN ,  Mohamed Mohamed Zakaria MOUSTAFA ,  Mohamed Ahmed Abdelrazek Mahmoud ABOUSHAL

IPC: H02J3/38 ,  H02J3/08

CPC classification number: H02J3/381 ,  H02J3/388 ,  H02J3/08 ,  H02J2300/24

Abstract: A microgrid (MG) controller can control a plurality of distributed generators (DGs) of photovoltaic (PV) arrays. The MG controller can include a power sharing unit configured to share power proportionally in a single current controlled mode (CCM) between the plurality of DGs based on a power capacity for each DG. The power sharing unit can include a robust current droop controller (RCDC) configured to provide proportional active current shared between the plurality of DGs. The power sharing unit can also include a quasi-proportional resonant (QPR) regulator coupled to the RCDC within a unified architecture. The QPR regulator can be configured to regulate a reference current signal.

公开(公告)号：US20230294062A1

公开(公告)日：2023-09-21

申请号：US17989753

申请日：2022-11-18

Applicant: Khalifa University of Science and Technology ,  National Center of Meteorology

Inventor： Linda Yuan ZOU ,  Mustapha JOUIAD ,  Abdelali ZAKI ,  Nabil EL HADRI ,  Haoran LIANG

IPC: B01J13/02 ,  A01G15/00

CPC classification number: B01J13/02 ,  A01G15/00 ,  C01D3/04

Abstract: Described herein are coated chloride salt particles, including NaCl/TiO2 and NaCl/SiO2 core/shell particles, along with methods of making and using the same.

公开(公告)号：US20230271728A1

公开(公告)日：2023-08-31

申请号：US17998483

申请日：2021-09-07

Applicant: Khalifa University of Science and Technology

Inventor： Andrei Ivanovich SHUMEIKO ,  Firas Salah JARRAR ,  Sean Shan Min SWEI

IPC: B64G1/40 ,  F03H1/00

CPC classification number: B64G1/405 ,  F03H1/0006

Abstract: An electrodeless plasma thruster with close ring-shaped gas discharge chamber (1,10) can include a gas discharge chamber (1,10) close ring shaped in fluid communication with a propellant storage system (10,70). An antenna (3,30) can be positioned on the exterior of the gas discharge tube (1,10). A guide tube (2,20) can be coupled with the gas discharge chamber (1,10) at a first end and have a second open end. A magnetic system (7,50) can be positioned on the second end of the guide tube (2,20). The magnetic system (7,50) can be electrically coupled with a power supply. The power supply can be electrically coupled with a power converter (11,80) and a control module (12,90).

公开(公告)号：US11731113B2

公开(公告)日：2023-08-22

申请号：US16964380

申请日：2017-08-23

Applicant: Khalifa University of Science and Technology

Inventor： Marios S. Katsiotis ,  Vasileios Tzitzios ,  Saeed Alhassan

IPC: B01J29/08 ,  C01B39/24 ,  B01J35/00 ,  B01J35/10 ,  B01J37/00 ,  B01J37/02 ,  B01J37/03 ,  B01J37/04 ,  B01J37/06 ,  B01J37/08 ,  B01J37/30 ,  C01B39/20 ,  C10G11/05

CPC classification number: B01J29/084 ,  B01J35/0013 ,  B01J35/1019 ,  B01J35/1023 ,  B01J35/1057 ,  B01J35/1061 ,  B01J37/0018 ,  B01J37/0236 ,  B01J37/031 ,  B01J37/04 ,  B01J37/06 ,  B01J37/08 ,  B01J37/30 ,  C01B39/205 ,  C01B39/24 ,  C10G11/05 ,  B01J2229/186 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2002/80 ,  C01P2004/03 ,  C01P2006/12 ,  C01P2006/16

Abstract: The present application relates to a method for synthesizing nanozeolite Y crystals, nanozeolite Y crystals obtainable by said method, and the use of the synthesized nanozeolite Y crystals in cracking hydrocarbons, as molecular sieves or as ion-exchangers.

公开(公告)号：US11672504B2

公开(公告)日：2023-06-13

申请号：US17513393

申请日：2021-10-28

Applicant: Khalifa University of Science and Technology

Inventor： Jerald Yoo ,  Judyta B. Tillak

IPC: A61B8/14 ,  B06B1/02 ,  B06B1/06 ,  G01N29/24 ,  G01N29/44 ,  A61B8/00 ,  G01S7/52 ,  G01S15/89 ,  G01N29/06 ,  G01N29/34

CPC classification number: A61B8/145 ,  A61B8/4488 ,  A61B8/4494 ,  B06B1/0215 ,  B06B1/0292 ,  B06B1/0607 ,  G01N29/0654 ,  G01N29/2406 ,  G01N29/2437 ,  G01N29/34 ,  G01N29/4463 ,  G01S7/5208 ,  G01S7/52047 ,  G01S7/52049 ,  G01S15/8915 ,  A61B8/4427 ,  A61B8/56 ,  A61B8/58

Abstract: The present disclosure is generally directed to a method for driving an ultrasonic transducer. The method includes coupling a driving electrode and a ground electrode of the ultrasonic transducer to a power supply and a ground, respectively, during a first time period based on a received drive signal. The method further includes decoupling the driving electrode and the ground electrode of the ultrasonic transducer from the power supply and the ground, respectively, to float the driving electrode and the ground electrode of the ultrasonic transducer during a second time period based on the received drive signal to store a charge between the driving electrode to the ground electrode.

公开(公告)号：US20230144255A1

公开(公告)日：2023-05-11

申请号：US17795504

申请日：2021-02-12

Applicant: Khalifa University of Science and Technology

Inventor： Tiejun ZHANG ,  Aikifa RAZA ,  Afra S. ALKETBI ,  Rajakumar DEVARAPALLI ,  Hongxia LI

IPC: F24S70/16 ,  C09D5/00 ,  C23C14/34 ,  C23C14/06 ,  F24S70/12 ,  F24S70/20

CPC classification number: F24S70/16 ,  C09D5/006 ,  C23C14/34 ,  C23C14/0688 ,  F24S70/12 ,  F24S70/20

Abstract: Aspects of the disclosure include a multilayer surface-covering assembly adapted to convert solar radiation to heat. The multilayer surface-covering assembly may include a first composite layer comprising a first amorphous refractory material and first metal nanoparticles, wherein the first amorphous refractor material encapsulates the first metal nanoparticles, and wherein the first composite layer is thermally coupled with a surface of a structure for conduction of heat from the first composite layer to the structure. he multilayer surface-covering assembly may also include an antireflective layer, wherein the first composite layer is disposed between the antireflective layer and the surface of the structure.

公开(公告)号：US20230084872A1

公开(公告)日：2023-03-16

申请号：US17800196

申请日：2021-03-09

Applicant: Khalifa University of Science and Technology

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

IPC: H02M3/158 ,  B60L15/00 ,  H02M1/14

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：US20220370983A1

公开(公告)日：2022-11-24

申请号：US17763070

申请日：2019-09-26

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

Inventor： Yasser AL WAHEDI ,  Shaima Hamad AL YAFEI ,  Georgia BASINA ,  Vasileios TZITZIOS

IPC: B01J20/28 ,  B01J20/10 ,  B01J20/02 ,  B01J20/30 ,  B01J20/32 ,  B01J20/34 ,  B01D53/52 ,  B01D53/96

Abstract: The present invention relates yolk-shell nanoparticles having both a high stability towards sintering and high H25 adsorption capacities, the use of the yolk-shell nanoparticles in a method for H2S removal from gas streams, and a corresponding method for H2S removal from gas streams also comprising the regeneration of the yolk-shell nanoparticles, wherein the yolk-shell nanoparticles provide for high H2 adsorption capacities and/or high reusability.

公开(公告)号：US20220258167A1

公开(公告)日：2022-08-18

申请号：US17528070

申请日：2021-11-16

Applicant: Khalifa University of Science and Technology

Inventor： Anas ALAZZAM ,  Habiba ALSAFAR ,  Waqas WAHEED ,  Sueda SAYLAN

IPC: B01L7/00 ,  C12Q1/70

Abstract: A device and method for detecting COVID-19 and other pathogens includes a sample compartment contained within an interior of the device and having multiple apertures for releasably receiving one or more test tubes containing a biological sample. A bottom portion of the test tube is contained within the interior of the device and a top portion of the test tube is exposed to atmosphere. The biological sample is lysed using the device; the lysed sample is mixed with one or more primers and then amplification (RT-LAMP) is performed using the device. A thermally conductive material on or in proximity to the sample compartment can facilitate precise heating of the compartment and sample. A thermally insulative material can be inside the interior of the housing. Multiple samples can be tested simultaneously. The results can be interpreted by a color change of the sample. The device is efficient, portable, reliable, and re-usable.

公开(公告)号：US20220258074A1

公开(公告)日：2022-08-18

申请号：US17640911

申请日：2020-09-02

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

Inventor： Mahmoud MERIBOUT ,  Lyes KHEZZAR ,  Nabil KHAROUA ,  Esra AL HOSANI

IPC: B01D19/00 ,  B01D17/04 ,  B01D17/12

Abstract: Embodiments of the present disclosure describe an inline demulsification system (400, 430) including an inline flow conditioner (402,410) for separating a multiphase fluid into a liquid phase (420) and a gas phase (422), wherein the liquid phase (420) includes an emulsion; and an ultrasonic wave device (404), provided downstream from the flow conditioner (402, 410), including one or more ultrasonic probes (442) for emitting ultrasonic waves (452) towards the multiphase fluid, wherein the ultrasonic waves (452) demulsify at least a portion of the emulsion. Embodiments of the present disclosure also describe related systems and methods.