公开(公告)号：US12007374B2

公开(公告)日：2024-06-11

申请号：US17925128

申请日：2020-07-22

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Aslihan Kartci ,  Quang Thang Nguyen ,  Khaled Nabil Salama

IPC: G01N33/00 ,  H04L67/12 ,  A01G25/16 ,  G08B21/18

CPC classification number: G01N33/0098 ,  H04L67/12 ,  A01G25/167 ,  G08B21/18

Abstract: A system for collecting information through a plant includes a first remote detecting device attached to a first portion of the plant and configured to transmit a given signal directly through the plant; the plant, which constitutes a communication channel; a second remote detecting device attached to a second portion of the plant, which is different from the first portion, and configured to receive a signal indicative of the transmitted given signal; and a sink node that communicates with the second remote detecting device.

公开(公告)号：US10312743B2

公开(公告)日：2019-06-04

申请号：US15556118

申请日：2016-05-26

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Mahmoud Hamdy Ouda ,  Khaled Nabil Salama

IPC: H02J5/00 ,  H04B5/00 ,  H02M7/02 ,  H02J50/20 ,  H02J50/80 ,  H02M7/219

Abstract: Various examples are provided related to radio frequency (RF) to direct current (DC) power conversion. In one example, a RF-to-DC converter includes a fully cross-coupled rectification circuit including a pair of forward rectifying transistors and a feedback circuit configured to provide feedback bias signals to gates of the pair of forward rectifying transistors via feedback branch elements. In another example, a method includes receiving a radio frequency (RF) signal; rectifying the RF signal via a fully cross-coupled rectification circuit including a pair of forward rectifying transistors; and providing a DC output voltage from an output connection of the fully cross-coupled rectification circuit, where gating of the pair of forward rectifying transistors is controlled by feedback bias signals provided to gates of the pair of forward rectifying transistors via feedback branch elements.

公开(公告)号：US20140239446A1

公开(公告)日：2014-08-28

申请号：US14239234

申请日：2012-08-17

Applicant: King Abdullah University of Science and Technology

Inventor： Amro M. Elshurafa ,  Ahmed Gomaa Ahmed Radwan ,  Ahmed A. Emira ,  Khaled Nabil Salama

IPC: H01L49/02

CPC classification number: H01L28/40 ,  H01G5/16 ,  H01G5/18 ,  H01G7/00 ,  H01G13/00 ,  H01L28/86 ,  Y10T29/43

Abstract: An embodiment of a fractal fixed capacitor comprises a capacitor body in a microelectromechanical system (MEMS) structure. The capacitor body has a first plate with a fractal shape separated by a horizontal distance from a second plate with a fractal shape. The first plate and the second plate are within the same plane. Such a fractal fixed capacitor further comprises a substrate above which the capacitor body is positioned.

Abstract translation: 分形固定电容器的实施例包括在微机电系统（MEMS）结构中的电容器体。 电容器本体具有与具有分形形状的第二板隔开水平距离的分形形状的第一板。 第一板和第二板在同一平面内。 这种分形固定电容器还包括基板，电容器本体位于该基板上。

公开(公告)号：US20240345062A1

公开(公告)日：2024-10-17

申请号：US18298776

申请日：2023-04-11

Applicant: Saudi Arabian Oil Company ,  King Abdullah University of Science and Technology

Inventor： Maha Nour ,  Khawlah Kharashi ,  Khaled Nabil Salama ,  Abdullah Hassan Bukhamsin ,  Esraa Fakeih ,  Sumana Bhattacharjee

IPC: G01N33/28 ,  G01N27/00

CPC classification number: G01N33/2888 ,  G01N27/002

Abstract: A fuel detection film includes a cyclic olefin copolymer that is insoluble in acyclic saturated hydrocarbons. The fuel detection film has a porous structure that defines a plurality of pores. The plurality of pores are configured to allow flow of a lubrication oil through the fuel detection film via the plurality of pores. A housing is configured to couple to a pipe flowing the lubrication oil. The housing defines a slot. The slot is configured to hold the fuel detection film. The fuel detection film, while held by the slot of the housing that is coupled to the pipe as the lubrication oil flows in the pipe, is configured to at least partially dissolve in a presence of an aromatic hydrocarbon in the lubrication oil flowing through the fuel detection film.

公开(公告)号：US20240329030A1

公开(公告)日：2024-10-03

申请号：US18128903

申请日：2023-03-30

Applicant: Saudi Arabian Oil Company ,  King Abdullah University of Science and Technology

Inventor： Maha Nour ,  Abdullah Hassan Bukhamsin ,  Esraa Fakeih ,  Sumana Bhattacharjee ,  Khaled Nabil Salama

IPC: G01N33/28

CPC classification number: G01N33/2835 ,  G01N33/2888

Abstract: Systems and methods include a computer-implemented method for determining hydrocarbon fuel concentrations. A thin Cyclic Olefin Copolymer (COC) film of a COC layer with a conductive trace that completes an electrical circuit is sputtered. The thin COC film is positioned under tension so that the thin COC film is configured to dissolve upon contact with alkyl aromatic compounds present in hydrocarbon fuels. A sample of a hydrocarbon fuel is positioned on the thin COC film. A determination is made, in response to positioning the sample, that a dissolution of the thin COC film has broken the conductive trace and has rendered the electrical circuit open. A time duration is measured from an introduction of the sample during positioning to an opening of the electrical circuit. A concentration of the hydrocarbon fuel in the sample is determined based on the time duration.

公开(公告)号：US11867657B2

公开(公告)日：2024-01-09

申请号：US17767191

申请日：2020-10-01

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Mani Teja Vijjapu ,  Sandeep G. Surya ,  Saravanan Yuvaraja ,  Khaled Nabil Salama

IPC: G01N27/407 ,  G01N27/414 ,  G01N33/00

CPC classification number: G01N27/4075 ,  G01N27/4141 ,  G01N33/0037

Abstract: A gas sensor includes a gate electrode; a dielectric layer covering one surface of the gate electrode; an indium (In) gallium (Ga) zinc (Zn) oxide (O) (IGZO) thin-film formed over the dielectric layer, and first and second metallic electrodes formed on a surface of the IGZO thin-film to act as source and drain, respectively. The IGZO thin-film has an In concentration of 11%+/−3%, Ga concentration of 11%+/−3%, Zn concentration of 7%+/−3%, and O concentration of 71%+/−3%, with a sum of the concentrations being 100%, and the gas interacts with the IGZO thin-film and changes a current through the IGZO thin-film.

公开(公告)号：US11265008B2

公开(公告)日：2022-03-01

申请号：US17059709

申请日：2019-05-29

Applicant: King Abdullah University of Science and Technology

Inventor： Abdulaziz Alhoshany ,  Khaled Nabil Salama

IPC: H03M3/00 ,  H03M1/46 ,  H03M1/12

Abstract: Circuitry and techniques are described herein for performing accurate and low power conversion of an analog value into a digital value. According to some aspects, this disclosure describes a successive approximation register (SAR) analog to digital converter (ADC). According to some aspects the SAR ADC comprises an active integrator between a sample and hold stage and a comparator stage. The active integrator operates differently dependent on whether the SAR ADC is operated in a sample phase or a conversion phase. According to other aspects, the SAR ADC utilizes a ring oscillator-based comparator to compare a sampled analog input value to a plurality of reference values to determine a digital value representing the analog value.

公开(公告)号：US10559443B2

公开(公告)日：2020-02-11

申请号：US15735213

申请日：2016-06-14

Applicant: King Abdullah University of Science and Technology

Inventor： Mohammed Affan Zidan ,  Jurgen Kosel ,  Khaled Nabil Salama

IPC: H01H59/00 ,  H01H49/00

Abstract: A microelectromechanical system (MEMS) switch with liquid dielectric and a method of fabrication thereof are provided. In the context of the MEMS switch, a MEMS switch is provided including a cantilevered source switch, a first actuation gate disposed parallel to the cantilevered source switch, a first drain disposed parallel to a movable end of the cantilevered source switch, and a liquid dielectric disposed within a housing of the microelectromechanical system switch.

公开(公告)号：US20240345064A1

公开(公告)日：2024-10-17

申请号：US18301610

申请日：2023-04-17

Applicant: Saudi Arabian Oil Company ,  King Abdullah University of Science and Technology

Inventor： Maha Nour ,  Esraa Fakeih ,  Sumana Bhattacharjee ,  Khaled Nabil Salama ,  Abdullah Hassan Bukhamsin

IPC: G01N33/28

CPC classification number: G01N33/2888

Abstract: A system and method for detecting aromatic compounds mixed with aliphatic compounds are provided. An exemplary system includes a lower substrate including a test magnet, a polymer film including a film magnet, and an upper substrate disposed over the polymer film, wherein the upper substrate includes an opening extending to the polymer film.

公开(公告)号：US10748609B2

公开(公告)日：2020-08-18

申请号：US16606786

申请日：2018-04-10

Applicant: King Abdullah University of Science and Technology

Inventor： Rawan Naous ,  Khaled Nabil Salama

IPC: G11C13/00 ,  H03K19/21 ,  H03K19/20

Abstract: In accordance with the present disclosure, one embodiment includes a memristor that is caused to be in a particular resistance state by a voltage applied across terminals of the memristor. A first logical input and a second logical input that are below a threshold voltage of the memristor are applied to a first terminal of the memristor. A first control input and a second control input are applied to a second terminal of the memristor. A logical output is determined based on a resistance state of the memristor.