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公开(公告)号:US10786801B2
公开(公告)日:2020-09-29
申请号:US16462720
申请日:2017-11-21
Applicant: Khalifa University of Science and Technology
Inventor: Isam Janajreh , Mohammed Noorul Hussain , Tala El Samad , Fadi Ataya
Abstract: Sono-chemical reactors and methods of using the same are provided. The sono-chemical reactors may include a plurality of sections that are sequentially connected along a longitudinal direction of the sono-chemical reactor. The plurality of sections may include a sono-reactor section that includes a reactant inlet through which reactants are supplied into the sono-reactor section and a static mixer section that is configured to receive a first reactant/product mixture from the sono-reactor section and is configured mix the first reactant/product mixture therein for reaction between unreacted reactants. An inner space of the sono-reactor section may taper along the longitudinal direction of the chemical reactor away from the reactant inlet. The plurality of sections may also include a product separation section that is configured to receive a second reactant/product mixture from the static mixer section and is configured to separate a product from the second reactant/product mixture.
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公开(公告)号:US20200209171A1
公开(公告)日:2020-07-02
申请号:US16727050
申请日:2019-12-26
Applicant: Khalifa University of Science and Technology
Inventor: Mohamed Abou-Khousa
Abstract: The present invention discloses imaging antenna and array by designing the system in the Ultra-high frequency (UHF) band 300 MHz-3 GHz with resolution comparable to high-frequency microwave imagers (i.e., super-resolution). To obtain high resolution at relatively low system cost and complexity, a novel modulated antenna array element design is disclosed. The antenna is basically small loop loaded with spiral resonator. The selection of the SR as a resonator provides for adequate miniaturization rate at the lower end of the microwave frequency range. A non-modulated version of this antenna has been conceived and yielded a resolution comparable to the 24 GHz antennas while operating at 426 MHz. The disclosed antenna element operating at 426 MHz produced images with very comparable attributes to the one obtained at 24 GHz. In fact, it has been established that proposed antenna element yield a resolution of around 5 mm (much less that the wavelength divided by 100), and hence it provides super-resolution as long as the diffraction limit is concerned. The present invention further discloses an imaging probe unit comprising a imaging sensor loaded with a PIN diode, an L-matching circuit and an LC resonant detuning circuit. The present invention further discloses a one-dimensional array, comprising a plurality of imaging probe units which are placed side by side in very close proximity of each other.
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公开(公告)号:US20200052141A1
公开(公告)日:2020-02-13
申请号:US16343075
申请日:2017-10-12
Inventor: Sabina ABDUL HADI , Ammar Munir NAYFEH , Eugene A. FITZGERALD
IPC: H01L31/0725 , H01L31/074 , H01L31/043
Abstract: A multi-junction solar cell includes a plurality of photovoltaic cell layers that are electrically connected and stacked to define upper and lower subcells having at least one step difference therebetween that exposes portions of the lower subcell such that, responsive to incident illumination, a current density of the exposed portions of the lower subcell is greater than that of portions thereof having the upper subcell thereon. Related devices and fabrication methods are also discussed.
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公开(公告)号:US20200009542A1
公开(公告)日:2020-01-09
申请号:US16470432
申请日:2017-12-19
Applicant: Khalifa University of Science and Technology
Inventor: Raed HASHAIKEH , Shaheen ANIS , Gnana P. SINGARAVEL
IPC: B01J29/16 , B01J35/06 , B01J29/14 , B01J37/04 , B01J37/34 , B01J37/03 , B01J37/00 , B01J37/08 , C10G47/20 , C10G47/18 , C10G47/04 , D01D5/00
Abstract: A hydrocracking catalyst for petroleum hydrocracking is provided, the hydrocracking catalyst provided in a form of at least one fiber, and the at least one fiber comprising at least one zeolite and at least one metal oxide. Methods are also provided to form the hydrocracking catalyst in the form of at least one fiber, particularly electrospinning.
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公开(公告)号:US20200003609A1
公开(公告)日:2020-01-02
申请号:US16023287
申请日:2018-06-29
Applicant: Khalifa University of Science and Technology
Inventor: Shahzad Muzaffar , Ibrahim Elfadel
Abstract: A method for estimating the weight of a subject while moving includes attaching one or more force sensors to the subject such that the force sensors measure a force exerted between each foot of the subject and a surface on which the subject is positioned, monitoring the one or more force sensors while the subject is moving to obtain a moving force measurement, processing the moving force measurement to determine a peak level of the moving force, a valley level of the moving force measurement, and a force range of the moving force measurement, determining an acceleration of center of mass of the subject from the force range, and estimating the weight of the subject while moving from the valley level and the acceleration of center of mass.
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公开(公告)号:US20190316076A1
公开(公告)日:2019-10-17
申请号:US16423764
申请日:2019-05-28
Applicant: Khalifa University of Science and Technology
Inventor: Ahmed Husain Al Harethi , Hector Hugo Hernandez
Abstract: The present invention relates generally to microalgae strains that are tolerant to high salinity, the products derived from the high salinity tolerant microalgae strains, and methods of producing high salinity tolerant microalgae strains and their products.
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公开(公告)号:US10370945B2
公开(公告)日:2019-08-06
申请号:US15093954
申请日:2016-04-08
Applicant: Khalifa University of Science and Technology
Inventor: Igor Boiko , Mohammad Luai Hammadih , Khalifa Hasan Al Hosani
Abstract: A method and apparatus for estimating a down-hole annulus pressure, and/or a down-hole tubing pressure, and/or a down-hole lift gas rate through a gas injection valve of gas lift system, which comprises at least one gas lift choke and at least one gas injection valve and at least one production choke. A state estimator is proposed to obtain the values of these down-hole process variables. The estimator contains a number of local estimators and an interpolation module.
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公开(公告)号:US20180323811A1
公开(公告)日:2018-11-08
申请号:US15587548
申请日:2017-05-05
Applicant: Khalifa University of Science and Technology
Inventor: Arafat Jamil Al-Dweik , Husameldin Mukhtar
CPC classification number: H04L1/0058 , H03M13/1102 , H03M13/1515 , H03M13/152 , H03M13/19 , H03M13/2963 , H03M13/453 , H04B1/06 , H04L1/0045 , H04L1/005 , H04L1/0052 , H04L1/0057 , H04L27/2035
Abstract: There is provided an ultra-light decoder for high speed digital communications based on block codes such as turbo product codes (TPCs). The new decoder can perform soft decision decoding without an algebraic hard decision decoder, which is the core of conventional soft decision decoders. The elimination of algebraic decoder significantly reduces the number of computations required per codeword, consequently, it reduces the decoding delay and processing power. However, reducing the decoding delay would immediately enable increasing the transmission speed, and minimize the need for large buffers at the receiver. Moreover, reducing the complexity and delay would enable using codes with high code rates to increase the system capacity, or use powerful codes with low code rates to reduce the transmission power. Such benefits can be achieved for about 1 dB loss in coding gain. There is also provided a receiver comprising the ultra-light decoder, as well as a decoding process.
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公开(公告)号:US20180256057A1
公开(公告)日:2018-09-13
申请号:US15756822
申请日:2016-09-02
Applicant: Khalifa University of Science and Technology
Inventor: Ahsan Khandoker
IPC: A61B5/0444 , A61B5/00 , A61B5/024
CPC classification number: A61B5/0444 , A61B5/02411 , A61B5/11 , A61B5/6831 , A61B5/7225 , A61B7/00 , A61B7/04 , A61B8/02 , A61B8/0866 , A61B2562/0204 , A61B2562/04
Abstract: A fetal phonocardiogram system featuring an array of acoustic sensors designed to be temporarily affixed to a pregnant patient to convert the vibrations associated with a fetal heartbeat and/or fetal movement into a signal. The signal can be amplified and transferred to a processing element for filtering non-fetal sounds in order to resolve the fetal heartbeat. The filtered signal can be used in conjunction with an array of multiple acoustic sensors to locate a fetal position relative to the array.
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公开(公告)号:US09952802B2
公开(公告)日:2018-04-24
申请号:US14627133
申请日:2015-02-20
Applicant: Khalifa University of Science and Technology
Inventor: Khaled Hamed Salah , Baker Shehadah Mohammad , Mahmoud Abdullah Al-Qutayri , Bushra Abbas Mohammed Essa Albelooshi
IPC: G11C11/406 , G06F3/06 , G11C7/10 , G11C8/10 , G11C11/4072 , G11C11/408 , G11C11/4093
CPC classification number: G06F3/0652 , G06F3/0608 , G06F3/0673 , G11C7/106 , G11C7/1087 , G11C8/10 , G11C11/406 , G11C11/4072 , G11C11/4087 , G11C11/4093
Abstract: A method of erasing volatile memory requiring refreshment using refresh circuitry to maintain data storage, the method comprising controlling the refresh circuitry for preventing refreshment of the memory upon occurrence of a predefined event which would require erasure of data stored in the memory by a previous user, process, application or service. A computer readable medium encoded with processor executable instructions for execution by a processing unit for controlling a refresh circuitry connected to a volatile memory for preventing refreshment of the memory at the predefined event. A refresh circuitry adapted to be connected to a volatile memory requiring refreshment using the refresh circuitry to maintain data storage, the refresh circuitry being adapted to prevent the refreshment of the memory at the occurrence of the predefined event. A volatile memory comprising a refresh circuitry adapted to prevent the refreshment of the memory at the occurrence of the predefined event.
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