KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Baig, Umair
Waheed, Abdul
Aljundi, Isam H.
Abrégé
A membrane including a support and an active layer. The active layer includes reacted units of a polyamine compound, a polyfunctional acid halide compound, and nickel oxide (NiO) nanoparticles (NPs). A surface of the NiO NPs is functionalized with an amino silane compound. The polyamine compound, the polyfunctional acid halide compound, and the amino silane compound are interfacially polymerized on the support to form the membrane.
B01D 67/00 - Procédés spécialement adaptés à la fabrication de membranes semi-perméables destinées aux procédés ou aux appareils de séparation
B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
B01D 69/10 - Membranes sur supportSupports pour membranes
B01D 71/70 - Polymères contenant, dans la chaîne principale, uniquement du silicium, avec ou sans soufre, azote, oxygène ou carbone
B01D 71/82 - Matériaux macromoléculaires non prévus spécifiquement dans un seul des groupes caractérisés par la présence de groupes déterminés, p. ex. introduits par un post-traitement chimique
2.
DETECTION OF LOW RESISTIVITY PAY ZONES USING SPECTRAL INDUCED POLARIZATION METHOD
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Kellal, Sara
Kirmizakis, Panagiotis
El-Husseiny, Ammar
Soupios, Panteleimon
Mahmoud, Mohamed
Abrégé
A method of subsurface formation characterization is described. The method includes obtaining spectral induced polarization (SIP) measurements of a volume of a subsurface formation at a plurality of frequencies to determine a frequency-dependent complex (FDC) impedance value of a matrix material in the volume of the subsurface formation. The method further includes determining whether the volume is a low resistivity pay (LRP) zone with a formation resistivity index≤2, by analyzing the FDC impedance value of the matrix material, and identifying the volume of the subsurface formation as the LRP zone when the FDC impedance exhibits a dispersion at increasing frequencies. The FDC impedance value is substantially constant before the dispersion and increases by at least one order of magnitude over one order of magnitude of the increasing frequencies in the dispersion.
G01V 3/24 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation spécialement adaptée au carottage fonctionnant par propagation de courant électrique en utilisant du courant alternatif
G01V 3/38 - Traitement de données, p. ex. pour l'analyse, pour l'interprétation ou pour la correction
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Asrof, Ali Shaikh
Arshad, Zeeshan
Baig, Nadeem
Abrégé
A composite membrane for desalination includes a polyethylene terephthalate (PET) nonwoven layer having a fibrous structure, and has an average thickness of about 30 to 200 micrometers (μm). A polysulfone (PS) layer having an average thickness of about 30 to 100 μm is disposed on a surface of the PET nonwoven layer. Further, a polyamide layer is disposed on a surface of the PS layer including reacted units of an acyl compound, a phenylenediamine monomer, and a poly-(DADMAC-co-DADA). The polyamide layer has a rough surface including a plurality of irregular-sized ridge-and-valley structures of polyamide. The poly-(DADMAC-co-DADA) has a formula (I), and n is a positive integer.
A composite membrane for desalination includes a polyethylene terephthalate (PET) nonwoven layer having a fibrous structure, and has an average thickness of about 30 to 200 micrometers (μm). A polysulfone (PS) layer having an average thickness of about 30 to 100 μm is disposed on a surface of the PET nonwoven layer. Further, a polyamide layer is disposed on a surface of the PS layer including reacted units of an acyl compound, a phenylenediamine monomer, and a poly-(DADMAC-co-DADA). The polyamide layer has a rough surface including a plurality of irregular-sized ridge-and-valley structures of polyamide. The poly-(DADMAC-co-DADA) has a formula (I), and n is a positive integer.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Waliullah, Shafiqur Rehman Hafez
Irshad, Kashif
Mohandes, Mohamed A.
Al-Shaikhi, Ali Ahmad
Abrégé
A floating solar photovoltaic system and a method for cooling a back surface of a photovoltaic panel are described. The floating solar photovoltaic system includes a rectangular float having a divided top platform and four interconnected walls, and a cross-shaped support configured to fit between the walls and holding four pontoons within openings formed thereby. An anchoring system maintains positional stability using concrete blocks interconnected by plastic-coated stainless-steel wires. A bi-facial solar photovoltaic panel is supported by the cross-shaped support, upon triangular braces, to generate electrical power from solar radiation. A waterproof control panel cabinet is also supported with the cross-shaped support. The floating solar photovoltaic system implements environmental monitoring through temperature and irradiance sensors, with data collection and wireless transmission capabilities. An integrated power management system enables both energy storage and transmission through a maximum power point tracking converter.
H02S 20/30 - Structures de support mobiles ou réglables, p. ex. pour réglage de l’angle
B63B 35/44 - Constructions, magasins, plates-formes de forage ou ateliers flottants, p. ex. portant des appareils séparateurs huile-eau
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 7/35 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p. ex. batterie tampon avec des cellules sensibles à la lumière
H02S 40/32 - Composants électriques comprenant un onduleur CC/CA associé au module PV lui-même, p. ex. module CA
H02S 40/34 - Composants électriques comprenant une connexion électrique structurellement associée au module PV, p. ex. boîtes de jonction
H02S 40/38 - Moyens de stockage de l’énergie, p. ex. batteries, structurellement associés aux modules PV
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Mousa, Wail A.
Elmak, Ahmed Abdelmoniem Mohamed
Abrégé
A method for first arrival picking of seismic data includes receiving a seismic shot record data set from a seismic event, extracting texture features from the seismic shot record data set, calculating an energy ratio matrix from the seismic shot record data set, using fuzzy c-means to cluster the texture features into a strong linear cluster, a moderate linear cluster, and a random noise cluster, calculating a first arrival class matrix from the moderate linear cluster, multiplying the first arrival class matrix by the energy ratio matrix to obtain a first arrival pick matrix, and identifying first arrival picks from the first arrival pick matrix.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Khan, Mohd Yusuf
Hanif, Aamir
Aziz, Md. Abdul
Abrégé
A method of preparing nitrogen-doped carbon nanosheets comprises mixing dried and pulverized Albizia procera with an activation agent in a mass ratio from 1:1 to 1:5 to form a mixture and heating the mixture in an inert atmosphere at a temperature in the range of 400 to 800° C. for 2 to 8 hours to form the nitrogen-doped carbon nanosheets. The activation agent is a carbonate salt and the nitrogen-doped carbon nanosheets have an average pore diameter of 0.5 to 2.5 nm and a carbon dioxide adsorption capacity of 1.0 mmol/g to 3.50 mmol/g.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Mukhtar, Faisal
Abrégé
A debonding test apparatus includes a structural block having a receiving space formed therein; a pair of clamps; an adjustable hanger; and an attachment mechanism. The structural block includes a top surface, a first lateral surface, a second lateral surface, a bottom surface, and a structural body. The structural body extends from the top surface to the bottom surface between the first lateral surface and the second lateral surface. The receiving space traverses through the structural body between the first lateral surface and the second lateral surface adjacent the bottom surface of the structural block. The adjustable hanger is slidably positioned into the receiving space adjacent a top end of the receiving space. The pair of clamps is slidably coupled to the adjustable hanger. The structural block, the pair of clamps, and the adjustable hanger are detachably attached to each other through the attachment mechanism.
G01N 3/24 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts permanents de cisaillement
B32B 43/00 - Opérations spécialement adaptées aux produits stratifiés et non prévues ailleurs, p. ex. réparationAppareils pour ces opérations
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Mahnashi, Yaqub Alhussain
Abrégé
A voltage converter system includes a negator coupled to a switched-capacitor converter (SCC). The negator circuit is coupled to an input terminal and generates a negative input voltage signal. The negator circuit includes a flying capacitor, a pair of first switches and a pair of second switches connected in a H-bridge configuration. The SCC is coupled to the input terminal and the negator circuit. The SCC includes a plurality of converter stages. Each stage of the plurality of converter stages includes a capacitor and an assembly of a first switch and a second switch. The system further includes a control unit, to activate or deactivate the pair of first switches, the pair of second switches, each of the first switches, and each of the second switches. A configuration of the negator circuit and the SCC results in a voltage conversion ratio between the output voltage signal and the input voltage signal.
H02M 3/07 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des résistances ou des capacités, p. ex. diviseur de tension utilisant des capacités chargées et déchargées alternativement par des dispositifs à semi-conducteurs avec électrode de commande
H02M 1/00 - Détails d'appareils pour transformation
H02M 1/088 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques pour la commande simultanée de dispositifs à semi-conducteurs connectés en série ou en parallèle
9.
BETA-CYCLODEXTRIN THIN FILM COMPOSITE MEMBRANES FOR NANOFILTRATION
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Baig, Umair
Jillani, Shehzada Muhammad Sajid
Waheed, Abdul
Abrégé
A filtration membrane, including (in the following order) a thermoplastic substrate, a first layer including a polysulfone, a second layer including units of a glucose-derived polysaccharide reacted with units of a tetramine and units of a phthaloyl chloride. The units of the tetramine and the units of the phthaloyl chloride are reacted to form a polyamide (PA) and the units of glucose-derived polysaccharide are covalently bonded to the PA through reacted units of the phthaloyl chloride. A method of nanofiltration using the filtration membrane.
B01D 67/00 - Procédés spécialement adaptés à la fabrication de membranes semi-perméables destinées aux procédés ou aux appareils de séparation
B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
B01D 69/10 - Membranes sur supportSupports pour membranes
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
10.
POLYAMIDE THIN FILM COMPOSITE MEMBRANES FOR NANOFILTRATION
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Waheed, Abdul
Baig, Umair
Aljundi, Isam H.
Abrégé
A filtration membrane, including (in the following order) a thermoplastic substrate, a first layer including a polyacrylonitrile grafted with a diamine, and a second layer comprising reacted units of a tetramine and reacted units of a phthaloyl chloride. The tetramine has two secondary amine groups and two primary amine groups. The primary amine groups are separated from the secondary amine groups by a C2 or C3 aliphatic group. The reacted units of the tetramine and the reacted units of phthaloyl chloride form a polyamide. One or more amine groups of the polyacrylonitrile of the first layer are cross-linked to the second layer through one or more phthaloyl groups of the reacted units of the phthaloyl chloride. A method of nanofiltration using the filtration membrane.
B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
B01D 69/10 - Membranes sur supportSupports pour membranes
B01D 71/42 - Polymères de nitriles, p. ex. polyacrylonitrile
King Fahd University of Petroleum and Minerals (Arabie saoudite)
Inventeur(s)
Al-Dirini, Feras Mohamad Ameer
Bunaiyan, Saleh Ahmad S
Abrégé
A voltage divider for generating probabilistic bits (p-bits) through stochastic magnetic tunnel junction devices (sMTJs). The voltage divider comprises a first and a second sMTJ, each including a first and a second magnet separated by an insulator. A positive DC voltage (VDD) is connected to the first electrical terminal of the first sMTJ, while a negative DC voltage (VSS) is connected to the second electrical terminal of the second sMTJ. The p-bits randomly oscillate between resistance states in response to thermal noise. The voltage divider also includes a comparator with a non-inverting input, an inverting input connected to the p-bit output, a source, a drain, and an output terminal. The output voltage (Vout) at the comparator is determined based on the resistances of the sMTJs.
King Fahd University of Petroleum and Minerals (Arabie saoudite)
Inventeur(s)
Aljalal, Abdulaziz Mohammed
Abrégé
Methods and systems for determining the speed of light by utilizing optical feedback from a laser diode include a laser diode mounted at a distance from a linear stage, with a beamsplitter positioned at an initial location along the stage. The laser diode generates a variably pulsed laser beam that is split by the beamsplitter into two portions. The first portion is reflected back to the laser diode, inducing stimulated amplification, while the second portion is detected by a photodetector. The photodetector measures the optical intensity and generates an amplified electrical signal. A data acquisition system records the frequency at which the laser power peaks, indicating resonance conditions. The beamsplitter is subsequently moved to a second position, and a new peak frequency is detected. Based on the measured frequencies and positions, the speed of light is calculated with high precision.
G01S 11/12 - Systèmes pour déterminer la distance ou la vitesse sans utiliser la réflexion ou la reradiation utilisant des ondes électromagnétiques autres que les ondes radio
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Kumar, A. Madhan
Hussein, Mohamed Abdrabou
Abrégé
A biomedical implant system includes a substrate and a coating. The coating includes a first layer including titanium dioxide nanotubes and a second layer including a polyvinylidene fluoride polymer. The titanium dioxide nanotubes extend perpendicularly from a surface of the substrate and contain ciprofloxacin. The titanium dioxide nanotubes are capped on an outer end with the polyvinylidene fluoride polymer. A process for making the biomedical implant system includes anodizing the substrate, at a voltage of 20 V to 80 V for a time of 10 to 200 minutes, in a solution to form the first layer of the coating. The first layer of the coating is further dried, annealed, loaded with ciprofloxacin, and covered with the second layer of the coating.
C09D 127/16 - Homopolymères ou copolymères du fluorure de vinylidène
A61M 37/00 - Autres appareils pour introduire des agents dans le corpsPercutanisation, c.-à-d. introduction de médicaments dans le corps par diffusion à travers la peau
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Bunaiyan, Saleh Ahmad S
Al-Dirini, Feras Mohamad Ameer
Abrégé
An apparatus and method for implementing a probabilistic bit (p-bit) circuit with enhanced tunability is disclosed. The apparatus includes multiple magnetic tunnel junctions (MTJs) connected in series to a drain of a transistor. The apparatus also includes a resistor connected to a source of the transistor. The resistor is of a resistance value that is selected based on an average equivalent resistance value of a series combination of the multiple MTJs. The apparatus includes a comparator configured to receive voltage from the drain (“drain voltage”) and generate an output voltage based on a reference voltage and the drain voltage. The method includes generating, using a first circuitry, a drain voltage that is fluctuating over time, and generating, using a second circuitry, an output voltage that is varying continuously over time by comparing the fluctuating voltage with a reference voltage.
G11C 11/16 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage électriques ou magnétiques particuliersÉléments d'emmagasinage correspondants utilisant des éléments magnétiques utilisant des éléments dans lesquels l'effet d'emmagasinage est basé sur l'effet de spin
H10B 61/00 - Dispositifs de mémoire magnétique, p. ex. dispositifs RAM magnéto-résistifs [MRAM]
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Hussain, Rifaqat
Abbasi, Durria
Aziz, Abdul
Zerguine, Azzedine
Abrégé
A twelve element dual band multiple-input multiple-output (MIMO) antenna for a smartphone that includes a substrate, twelve single-element dual-band antennas and twelve T-shaped feed structures. The substrate has a top side, a bottom side, and four distinct side walls. The substrate accommodates twelve single-element dual-band antennas distributed along four side walls. Each single-element dual-band antenna includes a meandered slot line having two arms. Each arm is configured to radiate at specific resonant frequency. Twelve T-shaped feed structures are aligned in parallel with the twelve single-element dual band antennas and are located on the inner surfaces of the side walls, facilitating connectivity through feed ports located on the bottom side of the substrate. The twelve-element dual-band MIMO antenna array effectively radiates in a dual band at 2.4 GHz and 3.5 GHz in response to electrical signals input at the feed ports, achieving antenna diversity with good isolation.
H01Q 1/24 - SupportsMoyens de montage par association structurale avec d'autres équipements ou objets avec appareil récepteur
H01Q 1/38 - Forme structurale pour éléments rayonnants, p. ex. cône, spirale, parapluie formés par une couche conductrice sur un support isolant
H01Q 5/35 - Alimentation simultanée en plusieurs points
H01Q 21/08 - Réseaux d'unités d'antennes, de même polarisation, excitées individuellement et espacées entre elles les unités étant espacées le long du trajet rectiligne ou adjacent à celui-ci
16.
TEN ELEMENT SINGLE-BAND MIMO ANTENNA FOR 5G SMARTPHONES
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Hussain, Rifaqat
Abbasi, Durria
Aziz, Abdul
Sheikh, Sharif Iqbal Mitu
Abrégé
A ten element dual band multiple-input multiple-output (MIMO) antenna for a smartphone configured for radiation at a resonant frequency of approximately 3.5 GHz. A substrate, having a top side, a bottom side, and four distinct side walls, accommodates ten single-element dual-band antennas distributed evenly along outer surfaces of two opposite side walls. Each antenna element includes a meandered slot line comprising two arms linked by a straight leg, with the arms connected to a ground plane situated on bottom side of the substrate. Parallel to the straight legs are ten T-shaped feed structures, housed on the inner surfaces of the two opposite side walls, facilitating connectivity through feed ports also located on the bottom side of the substrate. Each antenna element within the ten-element dual-band MIMO antenna array effectively radiates in response to electrical signals directed to their corresponding feed ports, achieving efficient performance at the designated resonant frequency.
H01Q 21/06 - Réseaux d'unités d'antennes, de même polarisation, excitées individuellement et espacées entre elles
H04B 7/0404 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées la station mobile comprenant plusieurs antennes, p. ex. pour mettre en œuvre une diversité en voie ascendante
17.
METHOD OF PREPARING CARBON NANOSHEETS FOR CARBON DIOXIDE ADSORPTION
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Khan, Mohd Yusuf
Hanif, Aamir
Aziz, Md. Abdul
Abrégé
Aspects of the present disclosure are directed to a method of preparing carbon nanosheets, including mixing dried and pulverized Corchorus olitorius sticks with an activation agent in a mass ratio range of 1:1 to 1:10 to form a mixture. Further, the method includes heating the mixture in an inert atmosphere in the range of 500° C. to 700° C. for 2 hours to 8 hours to form the carbon nanosheets. The heating of the mixture includes ramping at a rate of 10° C./min in a range of 50° C. to 700° C. The carbon nanosheets have an average pore diameter of 0.1 nm to 1.0 nm and a carbon dioxide adsorption capacity of 0.5 mmol/g to 3.5 mmol/g and the carbon nanosheets form a porous foam with perforated carbon nanosheet cell walls.
B01J 20/20 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant du carbone libreCompositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant du carbone obtenu par des procédés de carbonisation
B01D 53/04 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p. ex. chromatographie préparatoire en phase gazeuse avec adsorbants fixes
B01J 20/30 - Procédés de préparation, de régénération ou de réactivation
18.
TRÖGER'S BASE-DERIVED DIANHYDRIDE POLYIMIDE-BASED MEMBRANES FOR GAS SEPARATION
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Abdulhamid, Mahmoud Atef
Abrégé
A Tröger's base (TB) complex including a chemical structure I where ‘X’ is O or N—R1, R1 is an aryl group, a substituted aryl group, a heteroaryl group, a Tröger's base compound, or a substituted Tröger's base compound. Further, a polyimide including the TB complex. The TB complex can be used in membrane films.
A Tröger's base (TB) complex including a chemical structure I where ‘X’ is O or N—R1, R1 is an aryl group, a substituted aryl group, a heteroaryl group, a Tröger's base compound, or a substituted Tröger's base compound. Further, a polyimide including the TB complex. The TB complex can be used in membrane films.
C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide-acides ou précurseurs similaires de polyimides
C07D 491/22 - Composés hétérocycliques contenant dans le système cyclique condensé, à la fois un ou plusieurs cycles comportant des atomes d'oxygène comme uniques hétéro-atomes du cycle, et un ou plusieurs cycles comportant des atomes d'azote comme uniques hétéro-atomes du cycle, non prévus dans les groupes , , ou dans lesquels le système condensé contient au moins quatre hétérocycles
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Mohammed, Isah
Al Shehri, Dhafer Abdullah
Isah, Abubakar
Mahmoud, Mohamed
Abrégé
A method of hydrogen storage and recovery includes injecting saline water into a subterranean gas storage cell in a subterranean geologic formation, including magnetite. The method further includes injecting a gas mixture having hydrogen gas at a positive pressure into the subterranean gas storage cell, and then storing a portion of the hydrogen gas in the magnetite under a storage condition. At least a portion of hydrogen is desorbed of the hydrogen gas from the magnetite by injecting a chelating solution into the subterranean gas storage cell.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Baig, Nadeem
Abrégé
A filtration membrane includes stainless-steel mesh fibers, copper, and silver. The copper and the silver coat the stainless-steel mesh fibers. The silver is the outermost layer, which covers the copper. The silver is in the form of a layer of dendritic growths in the form of branched dendritic leaves. The branched dendritic leaves are 3 to 30 μm long. A method for oil and water separation using the filtration membrane is also provided.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Shuaibu, Abubakar Dahiru
Alzahrani, Atif Saeed
Aziz, Md. Abdul
Abrégé
A supercapacitor including a gel electrolyte and two electrodes having a substrate, date stone activated carbon, a conductive carbon compound different from the date stone activated carbon, and a binding compound. A mixture of the date stone activated carbon, the conductive carbon compound, and the binding compound partially coats a surface of the substrate. The two electrodes are assembled in a symmetrical layered configuration with the surfaces coated with the mixture facing each other. The gel electrolyte is present between the surfaces coated with the mixture to form the supercapacitor. The gel electrolyte is a mixture of H2SO4, polyvinyl alcohol, and anthraquinone. Particles of the date stone activated carbon have a nanosheet morphology, and the nanosheets are stacked on top of each other to form a hierarchical structure.
H01G 11/44 - Matières premières pour électrodes, p. ex. résine ou charbon
H01G 11/24 - Électrodes caractérisées par les propriétés structurelles des matériaux composant les électrodes ou inclus dans les électrodes, p. ex. forme, surface ou porositéÉlectrodes caractérisées par les propriétés structurelles des poudres ou particules utilisées à cet effet
H01G 11/34 - Électrodes caractérisées par leur matériau à base de carbone caractérisées par la carbonisation ou l’activation de carbone
H01G 11/36 - Nanostructures, p. ex. nanofibres, nanotubes ou fullerènes
H01G 11/56 - Électrolytes solides, p. ex. gelsAdditifs pour ceux-ci
H01G 11/86 - Procédés de fabrication de condensateurs hybrides ou EDL ou de leurs composants spécialement adaptés pour les électrodes
22.
SOLID-STATE HYBRID SUPERCAPACITOR WITH NICKEL-COBALT-LAYERED DOUBLE HYDROXIDE NANOFLOWERS SUPPORTED ON JUTE STICK-DERIVED ACTIVATED CARBON NANOSHEETS
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Shah, Syed Shaheen
Aziz, Md. Abdul
Yamani, Zain Hassan
Abrégé
An electrode including a substrate, a binding compound, and a composite. The composite includes jute-activated carbon and a nickel-cobalt-layered double hydroxide (NiCoLDH). Particles of the NiCoLDH are in the form of nanoflowers with an average size of 5-15 μm. The nanoflowers comprise nanosheets with an average thickness of 5-20 nm. The particles of the jute-activated carbon are in the form of interconnected nanosheets, which form a porous carbon framework. The porous carbon framework connects the nanoflowers, thereby forming an interconnected structure in the composite. A mixture of the composite and the binding compound is coated on the surface of the substrate. The electrode can be included in supercapacitors and power banks.
H01G 11/24 - Électrodes caractérisées par les propriétés structurelles des matériaux composant les électrodes ou inclus dans les électrodes, p. ex. forme, surface ou porositéÉlectrodes caractérisées par les propriétés structurelles des poudres ou particules utilisées à cet effet
H01G 11/26 - Électrodes caractérisées par leur structure, p. ex. multicouches, selon la porosité ou les caractéristiques de surface
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Al-Madani, Basem
Alyahya, Hanin
Alghurabi, Sameha
Aliyu, Farouq Muhammad
Abrégé
The present disclosure describes an autonomous warehouse package delivery system. The system includes a warehouse, a plurality of unmanned ground vehicles (UGV), a plurality of UAVs, and a plurality of servers. The warehouse includes a U-shaped conveyor belt, a plurality of shelving units, a plurality of package stacks, a first plurality of robots, and a second plurality of robots. Each UGV autonomously pick-ups a package from a shelf, navigates to the UAV landing pads, and places the package on the UAV landing pad. The plurality of UAVs travel to the UAV landing pad and pick up a package, autonomously fly to a package delivery address and release the package at the package delivery address. A real-time data distribution middleware network is connected to the U-shaped conveyor belt, the first plurality of robots, the second plurality of robots, the plurality of UGVs, the plurality of UAVs and a plurality of servers.
G06Q 10/087 - Gestion d’inventaires ou de stocks, p. ex. exécution des commandes, approvisionnement ou régularisation par rapport aux commandes
B65G 1/137 - Dispositifs d'emmagasinage mécaniques avec des aménagements ou des moyens de commande automatique pour choisir les objets qui doivent être enlevés
G08G 7/00 - Systèmes de commande du trafic pour la commande simultanée de plusieurs types différents de véhicules
24.
METHOD OF PREPARING CARBON QUANTUM DOTS (CQDs) FROM WASTE BIOMASS OF A MELON
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Khan, Firoz
Al-Rasheidi, Masoud
Abrégé
Aspects of the present disclosure are directed to a method for synthesizing carbon quantum dots. The method includes reacting a mixture of a fruit waste material and deionized water hydrothermally in an autoclave at a reaction temperature in a range of 150° C. to 250° C. to form a carbon quantum dot containing suspension, centrifuging the carbon quantum dot containing suspension to separate the carbon quantum dots from a hydrochar, and filtering the carbon quantum dot containing suspension to obtain the carbon quantum dots. The carbon quantum dots have a size ranging from 2 to 10 nm. The carbon quantum dots have a Stokes shift of at least 150 nm at an excitation wavelength of 360 nm or lower.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Hossain, Mohammad Mozahar
Alamoudi, Omar Mohammad O.
Khan, Wasim Ullah
Ali, Syed Ahmed
Hantoko, Dwi
Abrégé
A method for ammonia (NH3) decomposition to hydrogen (H2) and nitrogen (N2) includes introducing and passing a H2-containing feed gas stream into a reactor containing an industrial waste-based nickel (Ni-SMR) catalyst at a temperature of 500 to 900° C. to form a reduced Ni-SMR catalyst; introducing and passing an NH3-containing feed gas stream through the reactor in contact with the reduced Ni-SMR catalyst at a temperature of 100 to 1000° C. thereby converting at least a portion of the NH3 to H2 and regenerating the Ni-SMR catalyst particles to form a regenerated Ni-SMR catalyst, and producing a residue gas stream leaving the reactor; and separating the H2 from the residue gas stream to generate a H2-containing product gas stream.
C01B 3/04 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par décomposition de composés inorganiques, p. ex. de l'ammoniac
B01J 8/02 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes
B01J 23/78 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe du cuivre ou des métaux du groupe du fer en combinaison avec des métaux, oxydes ou hydroxydes prévus dans les groupes avec des métaux alcalins ou alcalino-terreux ou du béryllium
B01J 35/10 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général solides caractérisés par leurs propriétés de surface ou leur porosité
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Suliman, Munzir Hamedelniel Mohamed
Usman, Muhammad
Abrégé
A method of forming an electrode including dissolving a copper salt and benzene-1,3,5-tricarboxylate in a solvent and heating to a temperature of 60° C. to 100° C. to form a framework. Further, the method includes mixing a zinc salt and the framework to form a zinc doped framework and heating the zinc doped framework to a temperature of 300° C. to 600° C. under air to form ZnCuO nanoparticles. Furthermore, the method includes mixing the ZnCuO nanoparticles, a binding compound, and a conductive carbon compound in a solvent to form a suspension. Moreover, the method includes coating a substrate with the suspension and drying to form the electrode and the ZnCuO nanoparticles have an oval shape with an average size of 50 nm to 200 nm.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Suliman, Munzir Hamedelniel Mohamed
Usman, Muhammad
Abrégé
A method of forming an electrode including dissolving a copper salt and benzene-1,3,5-tricarboxylate in a solvent and heating to a temperature of 60° C. to 100° C. to form a framework. Further, the method includes mixing a zinc salt and the framework to form a zinc doped framework and heating the zinc doped framework to a temperature of 300° C. to 600° C. under air to form ZnCuO nanoparticles. Furthermore, the method includes mixing the ZnCuO nanoparticles, a binding compound, and a conductive carbon compound in a solvent to form a suspension. Moreover, the method includes coating a substrate with the suspension and drying to form the electrode and the ZnCuO nanoparticles have an oval shape with an average size of 50 nm to 200 nm.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Elshormbably, Mohamed Mamdouh Mohamed
Abido, Mohamed Ali Yousef
Abrégé
A predictive current control method for a six-phase induction motor (6PIM) includes initializing a six-phase inverter at a present switching state, measuring a stator current and a rotor speed, transforming the stator current to αβ and xy orthogonal frame, estimating a pair of currents in αβ and xy frame based upon the measured and an estimated rotor speed, and calculating a future stator current for a future control sample of the inverter. The method further includes selecting four voltage vectors (VV) from αβ and xy frames, implementing a cost function to calculate an error between the predicted future and a reference stator current, calculating a plurality of cost function results of each of the four VV, identifying a future VV that provides a minimum cost function results for the future control sample, saving the future VV to be used as an input to the lookup table for the next control sample and controlling the 6PIM by applying the future control sample as the switching state of the inverter.
H02P 21/22 - Commande du courant, p. ex. en utilisant une boucle de commande
H02P 21/18 - Estimation de la position ou de la vitesse
H02P 25/10 - Moteurs à collecteur, p. ex. moteurs à répulsion
H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs
29.
ZnO-REINFORCED Mg-Zr MATRIX BIOCOMPOSITES AND METHODS OF PREPARATION THEREOF
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Hussein, Mohamed Abdrabou
Azeem, Mohammed Abdul
Kumar, Arumugam Madhan
Abrégé
A method of making a composite, including mixing ZnO nanoparticles (NPs), Mg particles, and Zr particles under an inert atmosphere to form a powder mixture, compacting the powder mixture at a pressure of 500-600 MPa for at least 1 minute to form a compacted mixture, and sintering the compacted mixture at a temperature of 400-500° C. for at least 1 hour to form the composite. The composite includes 1-10 wt. % of the ZnO NPs and 0.1-5 wt. % of the Zr particles, based on a total weight of the composite, the Zr particles and the ZnO NPs are homogeneously dispersed in a matrix of the Mg particles in the composite, the Mg particles have an average grain size of 5-10 μm in the composite, and the Zr particles and the ZnO NPs separately form aggregates at grain boundaries of the Mg particles in the composite.
A61L 31/12 - Matériaux composites, c.-à-d. en couches ou contenant un matériau dispersé dans une matrice constituée d'un matériau analogue ou différent
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Usman, Muhammad
Suliman, Munzir Hamedelniel Mohamed
Abrégé
A method for syngas production includes contacting an electrocatalytic working electrode with a gaseous electrolytic solution including carbon dioxide in a cell with a reference electrode and a counter electrode, applying a potential to the cell during the contacting, and forming a gaseous syngas product by electrocatalytically reducing the carbon dioxide in the gaseous electrolytic solution without forming any liquid syngas product. The electrocatalytic working electrode includes an electrocatalytic material on a conductive carbon paper. The electrocatalytic material includes a zeolitic imidazolate framework-8 (ZIF-8) and silver in an amount of 5 to 10 percent by weight of the electrocatalytic material. The ZIF-8 and silver are in a layer of particles. The particles are in the form of one or more polyhedrons and the one or more polyhedrons have a longest dimension with an average length of 0.1 to 20 μm. The electrocatalytic working electrode, the reference electrode, and the counter electrode are in connection with a potentiostat workstation.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Alhooshani, Khalid
Hussain, Ijaz
Abrégé
A method for direct methane (CH4) oxidation (DMTM) to methanol (CH3OH) includes passing an oxygen-containing feed gas stream into a reactor containing a copper-loaded mordenite zeolite (Cu-MOR) catalyst particles such that the oxygen-containing feed gas stream is in contact with the Cu-MOR catalyst particles, at a temperature of 100 to 500° C., to form an oxidized Cu-MOR catalyst. The method further includes displacing oxygen in the reactor by nitrogen purging, and further passing a CH4-containing feed gas stream through the reactor in contact with the oxidized Cu-MOR catalyst at a temperature of 50 to 200° C., thereby converting at least a portion of the CH4 to CH3OH. The method further includes regenerating the Cu-MOR catalyst particles to form a regenerated Cu-MOR catalyst. The CH3OH is adsorbed on surfaces and pores of the regenerated Cu-MOR catalyst.
C07C 29/50 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par des réactions d'oxydation avec formation de groupes hydroxyle uniquement par l'oxygène moléculaire
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Malaibari, Zuhair Omar
Hussain, Ijaz
Abrégé
3 of 10-200:1. Particles of the aluminosilicate zeolite have a flake shape with an average longest dimension of 10 nanometers (nm) to 50 nm and the flakes are stacked on top of one another.
B01J 29/70 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes de types caractérisés par leur structure spécifique non prévus dans les groupes
B01J 35/50 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général caractérisés par leur forme ou leur configuration
B01J 37/10 - Traitement thermique en présence d'eau, p. ex. de vapeur d'eau
C01B 39/48 - Autres types caractérisés par leur diagramme de diffraction des rayons X et par leur composition définie utilisant au moins un agent structurant organique
33.
COPPER-DECORATED NITROGEN-DOPED CARBON NANOSHEETS FOR ELECTROCATALYTIC REDUCTION OF CO2
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Suliman, Munzir Hamedelniel Mohamed
Yamani, Zain Hassan Abdallah
Usman, Muhammad
Abrégé
A method of making an electrocatalyst, including dissolving a copper salt and an aromatic compound in a solvent to form a first mixture, heating the first mixture to a temperature of 90-120° C. for 1-20 hours (h) to form a copper complex, heating the copper complex under a nitrogen atmosphere at a temperature of 500-1,000° C. to form a nanocomposite; and coating a layer of the nanocomposite on a substrate to form the electrocatalyst. The nanocomposite contains copper nanoparticles (NPs) and nitrogen-doped carbon nanosheets. The copper NPs are uniformly dispersed on a surface of the nitrogen-doped carbon nanosheets, the nitrogen-doped carbon nanosheets have an average thickness of 0.1-10 nm, and the copper NPs are spherical and have an average diameter of 2-10 nm.
C25B 11/091 - Électrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé d’au moins un élément catalytique et d’au moins un composé catalytiqueÉlectrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé de plusieurs éléments catalytiques ou composés catalytiques
C25B 3/07 - Composés contenant au moins un atome d’oxygène
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Shafiullah, Md
Abrégé
A method and system for mitigating low-frequency oscillations of a power system network (PSN). The method includes receiving multiple data sets from the PSN, comprising values of terminal voltage, a real power, and a reactive power. The method further employs the multiple data sets to a fuzzy c-means clustering technique, a deep learning technique and a whale optimization algorithm to generate a pair of parameter values for a power system stabilizer controlling a steady-state of the power system network.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Hussain, Rifaqat
Abrégé
A three element slot-based antenna which includes a dielectric circuit board, a metallic layer, a sensing antenna, a first narrow band antenna, a second narrow band antenna, a first tapered transmission line, a second tapered transmission line, a first microstrip transmission line and a second microstrip transmission line. The sensing antenna is a semi-hexagonal slot-line loop whereas each of the first narrow band antenna and the second narrow band antenna are formed as a semi-elliptical slot-line loop having an E-shaped base in the metallic layer. The first tapered transmission line and the second tapered transmission line is connected to first feed port and second feed port, respectively. The first microstrip transmission line and the second microstrip transmission line are connected to third feed port and fourth feed port, respectively. The antenna resonates with circular polarization in an ultra-high frequency sub-GHz responsive to input signal at each feed port.
H01Q 21/24 - Combinaisons d'unités d'antennes polarisées dans des directions différentes pour émettre ou recevoir des ondes polarisées circulairement ou elliptiquement ou des ondes polarisées linéairement dans n'importe quelle direction
36.
APPARATUS AND METHODS FOR THE ESTIMATION OF SOIL UNCONFINED COMPRESSIVE STRENGTH USING LASER-INDUCED SPECTROSCOPY
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Wudil, Yakubu Sani
Al-Osta, Mohammed A.
Al-Amoudi, Omar S. Baghabra
Gondal, Muhammad A.
Al Najjar, Osama Atef
Abrégé
A field portable device for determining the unconfined compressive strength of a soil sample includes a sample holder, a heating device, a scale, a spectrometer, and a microprocessor. The sample holder receives a soil sample. The heating device dries the soil sample for a specified time. The scale measures a weight of the soil sample and a dried weight of the soil sample. The spectrometer performs laser induced breakdown spectroscopy on the soil sample and generates spectral emission intensities of the soil sample. The microprocessor calculates a bulk density and a water content of the soil sample, actuates the spectrometer to generate the spectral emission intensities. The microprocessor applies the spectral emission intensities, the bulk density and the water content to a trained machine learning regressor combined with an adaptive boosting classifier to predict the unconfined compressive strength of the soil sample.
G01N 21/71 - Systèmes dans lesquels le matériau analysé est excité de façon à ce qu'il émette de la lumière ou qu'il produise un changement de la longueur d'onde de la lumière incidente excité thermiquement
G01N 21/25 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Mohamed, Mohamed Jaffer Sadiq
Gondal, Muhammad Ashraf
Abrégé
A method of generating hydrogen including applying a potential of greater than 0 to 2.0 V to an electrochemical cell that is partially submerged in an aqueous solution. On applying the potential, water in the aqueous solution is reduced, and thereby forms hydrogen. The electrochemical cell includes an electrocatalyst and a counter electrode. The electrocatalyst includes a substrate, WO3−x nanosheets, and CdS1−y nanospheres, in which, x is from greater than 0 to less than 3 and y is from greater than 0 to less than 1. The CdS1−y nanospheres are dispersed on the WO3−x nanosheets to form a nanocomposite, which is dispersed on a surface of the substrate. The WO3−x nanosheets have an average length of 600-800 nanometers (nm) and an average width of 300-500 nm, and the CdS1−y nanospheres have an average diameter of 10-50 nm.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Qureshi, Khurram Karim
Mirza, Jawad
Atieh, Ahmad
Ghafoor, Salman Abdul
Iqbal, Sheikh Sharif
Abrégé
A dual-hop system for optical wireless communication between a base station on Earth and satellite is described. The system includes a first Thulium-Doped Fiber Amplifier (TDFA) at the base station and a second TDFS installed in a High-Altitude Platform Station (HAPS). The first TDF A includes a first thulium-doped fiber (TDF) and a first set of optical pumps. The first TDFA amplifies an input optical signal for wireless transmission to the HAPS installed at a specific altitude. The amplified signal is received by the second TDFA at HAPS. The second TDFA includes a second TDF and a second set of optical pumps. The signal amplified by the second TDFA is compensated for attenuation before it is wirelessly transmitted to the satellite. Both TDFAs ensure that the amplification of the optical signals, either through power amplification or gain, meets specified criteria to maintain the integrity and quality of the transmitted signals.
H04B 10/118 - Dispositions spécifiques à la transmission en espace libre, c.-à-d. dans l’air ou le vide spécialement adaptées aux communications par satellite
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Lawal, Dahiru Umar
Shamet, Osman Mohamed Osman
Antar, Mohamed Abdelkarim
Ahmed, Suhaib Mustafa Alawad
Aljundi, Isam Hassan
Zubair, Syed Mohammad Zubair
Abba, Sani Isah
Abrégé
A zero liquid brine desalination and crystallization system includes a humidification dehumidification (HDH) desalination system and includes a crystallization system. The HDH system includes a humidifier configured to humidify a carrier gas using saline water, and a dehumidifier configured to dehumidify the carrier gas to obtain desalinated water. The crystallization system is configured to receive the saline water from the HDH desalination system and includes an evaporation chamber configured to produce salt crystals and water vapor from the saline water, and a condenser configured to condense the water vapor. Herein, the HDH desalination system and the crystallization system are connected at the condenser for heat exchange between the water vapor and at least one selected from the group consisting of the saline water and the carrier gas.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Onaizi, Sagheer A.
Iddrisu, Mustapha
Abrégé
A method of removing hydrogen sulfide from a subterranean geological formation includes injecting a drilling fluid suspension in the subterranean geological formation. The drilling fluid suspension has a pH of 10 or more and includes a layered triple hydroxide material, including manganese, cobalt, and iron, in an amount of 0.01 to 0.5 percent by weight of the drilling fluid suspension. The method further includes circulating the drilling fluid suspension in the subterranean geological formation and forming a water-based mud and scavenging the hydrogen sulfide from the subterranean geological formation by reacting the hydrogen sulfide with the layered triple hydroxide material in the water-based mud.
B01D 53/80 - Procédés en phase semi-solide, c.-à-d. au moyen de boues
B01J 20/06 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des oxydes ou des hydroxydes des métaux non prévus dans le groupe
B01J 20/30 - Procédés de préparation, de régénération ou de réactivation
C01G 51/40 - Oxydes complexes contenant du cobalt et au moins un autre élément métallique
C09K 8/16 - Compositions contenant de l'argile caractérisées par les composés inorganiques autres que l'argile
E21B 21/00 - Procédés ou appareils pour nettoyer les trous de forage par jet de fluide, p. ex. en utilisant l'air d'échappement du moteur
E21B 41/02 - Lutte contre la corrosion sur place dans les trous de forage ou dans les puits
41.
Molybdenum-doped zinc/cobalt oxide electrocatalyst for hydrogen production
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Oshaish, Ali Abdulwahab
Mahmoud, Mohamed
Soupios, Panteleimon
El-Husseiny, Ammar
Kirmizakis, Panagiotis
Abrégé
A method of emulsion detection includes executing an oil production process from a volume of a formation. While executing the oil production process, conducting real-time spectral induced polarization (SIP) measurements of the volume of the formation to determine a real-time real conductivity value (RCV) of a matrix material in the volume of the formation. The method further includes determining an onset of water-in-oil (W/O) emulsion formation in the volume of the formation by analyzing the real-time RCV of the matrix material and optionally identifying the onset of the W/O emulsion formation when the real-time RCV first exceeds a first threshold value.
G01N 15/02 - Recherche de la dimension ou de la distribution des dimensions des particules
G01N 15/0205 - Recherche de la dimension ou de la distribution des dimensions des particules par des moyens optiques
G01V 3/06 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation fonctionnant par propagation de courant électrique en utilisant du courant alternatif
G01N 15/00 - Recherche de caractéristiques de particulesRecherche de la perméabilité, du volume des pores ou de l'aire superficielle effective de matériaux poreux
43.
System and computer-readable medium for improving the critical path delay of a FPGA routing tool at smaller channel widths
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Siddiqi, Umair Farooq
Sait, Sadiq Mohammed
Abrégé
A system and method for routing Field Programmable Gate Arrays (FPGAs) includes an input device for acquiring a netlist with defined source, sink, and intermediate nodes, and processing circuitry that features a design router. The router leverages a negotiated-congestion routing component, which promotes the shared use and negotiation for intermediate nodes. The negotiation process employs a congestion cost based on several factors, including base, historical, and present usage costs, alongside node capacity. This system is characterized by a historical cost function focused on the base cost of nodes, favoring the use of those with costs below a specified threshold. A display device incorporated within the system allows for the continuous monitoring of the routing procedure and the efficiency of resource usage. The technology aims to streamline FPGA design by optimizing signal routing for performance and area efficiency.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
KING ABDULLAH CITY FOR ATOMIC & RENEWABLE ENERGY (K.A. CARE) (Arabie saoudite)
Inventeur(s)
Ahmad, Aziz
Ullah, Sami
Khan, Sardaraz
Khan, Safyan Akram
Abrégé
A supercapacitor including a negative electrode, a positive electrode, an electrolyte, and a separator. The separator is between the negative electrode and the positive electrode, and the electrolyte is present in and on the separator. The negative electrode and the positive electrode include a carbon material selected from a poly-anthraquinone sulfide activated carbon material and a poly-anthraquinone sulfide reduced activated carbon material.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Shemsi, Ahsan Mushir
Khan, Safyan Akram
Al-Ismail, Fahad Saleh
Abrégé
A method of measuring chemical oxygen demand (COD) in seawater including dialyzing the seawater including chloride ions and at least one organic compound with an electrodialysis unit to form a processed seawater having at least 25% less chloride ions than the seawater; mixing the processed seawater with an oxidizing agent to oxidize the at least one organic compound and heating to 100-200° C. for 1-5 hours to form a digested solution. The method further includes cooling the digested solution and adding an indicator to form a titration solution, and further performing a colorimetric titration on the titration solution with a reducing agent so as to reduce any excess of the oxidizing agent and reach an equivalence point based on the indicator. The COD in the seawater is calculated based on an amount of reducing agent used in the colorimetric titration.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Alawsh, Saleh Ahmed
Abrégé
An antenna array for reception of radio waves includes a first leg aligned in a first direction, a second leg aligned in a second direction, a third leg, and a communication module. The elements of the first linear subarray are spaced by a first distance. The elements of the second linear subarray are spaced by a second distance. The first distance is not equal to the second distance. The second direction is orthogonal to the first direction. The third linear subarray is aligned in a third direction that is collinear to the first direction or at an angle of 45 degrees between the first direction and the second direction. The communication module receives the radio waves from the first leg, the second leg and the third leg and determines a two dimensional direction of the source of the radio waves.
G01S 3/74 - Systèmes à voies multiples spécialement adaptés à la radiogoniométrie, c.-à-d. ayant un système d'antenne unique pouvant indiquer simultanément les directions de différents signaux
G01S 3/14 - Systèmes pour déterminer une direction ou une déviation par rapport à une direction prédéterminée
47.
OBSTACLE AVOIDANCE USING A MONOCULAR CAMERA IN A VEHICLE
YOKOGAWA SAUDI ARABIA COMPANY L.L.C. (Arabie saoudite)
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Javaid, Abdulrahman Basharat
Baroudi, Uthman Abdurrahman
Alduais, Asaad Abdulsalam
Shullar, Mohammad Hashem Mohammad Kenana
Abrégé
Obstacle avoidance by a remote or autonomously operated vehicle, such as an unmanned aerial vehicle (UAV), is of critical importance. By utilizing a monocular camera, a UAV may capture an image and select a middle sub-image for processing. If the average depth of the pixels in the middle sub-image is greater than a previously determined threshold, the UAV may proceed forward. However, if the average depth of the pixels is less than the threshold, a turn is required. A left sub-image and a right sub-image are processed and, based on the one having the greatest depth, a turn instruction is provided to the UAV.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Sajid, Muhammad
Nazal, Mazen Khaled
Gijjapu, Durga Rao
Abrégé
A membrane-based inverted liquid-liquid extraction method for extracting an analyte from an unsupported aqueous liquid sample includes sealing the unsupported aqueous liquid sample in a porous membrane bag, immersing the porous membrane bag in an organic solvent, and extracting the analyte from the unsupported aqueous liquid sample to produce an extract within the organic solvent. The unsupported aqueous liquid sample is immiscible with the organic solvent. The porous membrane bag does not contain a solid sorbent.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
KING ABDULLAH CITY FOR ATOMIC & RENEWABLE ENERGY (K.A. CARE) (Arabie saoudite)
Inventeur(s)
Khan, Sikandar
Bashir, Adeel
Bashmal, Salem
Iqbal, Naveed
Ullah, Sami
Abrégé
A method for temperature control for magnetic fluid hyperthermia includes delivering therapeutic nanoparticles to a tumor site in a patient, exciting the therapeutic nanoparticles with a magnetic field, and regulating the temperature of the tumor with a controller. The controller is configured to constantly measure the temperature of the tumor site and increase or decrease the strength of the magnetic field to maintain the temperature of the tumor site within a therapeutic temperature range for a therapeutic time period. Further, the controller utilizes a sliding mode nonlinear control technique to regulate temperature. The sliding mode nonlinear control technique is derived from a state space representation of a system.
A61N 2/02 - Magnétothérapie utilisant des champs magnétiques produits par des bobines, y compris par des boucles à spire unique ou par des électro-aimants
50.
SYSTEMS AND METHODS FOR CONVERTERLESS SOLAR PV OPERATION IN HYBRID RENEWABLE MICROGRIDS
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Saudi Data and Artificial Intelligence Authority (SDAIA) (Arabie saoudite)
Inventeur(s)
Gulzar, Muhammad Majid
Khalid, Muhammad
Abrégé
A device and method for managing power transmission to a power grid from a Hybrid Grid Connected System (HGCS) is presented. The HGCS includes a plurality of energy resources, including of solar photovoltaic cells (PV), wind power generation, a battery energy storage system (BESS) and a fuel cell system paired with an electrolyzer. Energy sources are connected by a DC-link to a power electronic converter which supplies power to the power grid. A controller is configured to calculate the total power, maximize transmission of power to the power grid from the primary sources, supply the net power to the power grid from the fuel cell system and use the power generated by the PV system and the wind power system for charging the BESS and powering the electrolyzer system based on the relative state of charge of the BESS and the voltage of the DC-link.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Merah, Necar Ammar Saleh
Almushrif, Trad Yahya
Alzahrani, Ryan Atiq
Alwafi, Muath Sulaiman
Alshehri, Yazeed Abdullah
Abrégé
A walker for an animal that includes five expandable shaft members, each of the five expandable shaft members include an inner solid shaft and an outer hollow slider. The five expandable shaft members includes two horizontally configured shaft members and three vertically configured shaft members. A solid support shaft is coupled to the two horizontally configured shaft members. The two horizontally configured shaft members and the solid support shaft form a body frame. Further, the walker includes body support members for the animal to rest thereon, at least one rear wheel coupled to a motor, and two front wheels. The three vertically configured shaft members are coupled to the at least one rear wheel and the two front wheels, respectively.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Onaizi, Sagheer A.
Abrégé
2S from the gas composition by the composite mixture to form a purified gas composition. The composite contains a XMgAl mixed hydroxide, where X is Zn, Co, Mn, or Cu, and a zeolitic imidazolate framework-8 (ZIF-8). Particles of the XMgAl mixed hydroxide are dispersed within pores of the ZIF-8.
B01D 53/10 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p. ex. chromatographie préparatoire en phase gazeuse avec adsorbants mobiles avec adsorbants dispersés
B01J 20/22 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance organique
53.
Composition for enhancing the thickening time of hematite-based fly ash geopolymers
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Abdelaal, Ahmed Elsayed Ahmed Ibrahim
Elkatatny, Salaheldin Mahmoud Ahmed
Abrégé
A hematite-based fly ash composition includes a curable component including a fly ash binder material (FFA) and a hematite weighting agent present in an amount of 20 to 80% by weight of the fly ash binder material (BWOB). The composition further includes superplasticizers (SPs) in an amount of 5 to 10% BWOB; retarders in an amount of 5 to 10% BWOB; a defoamer in an amount of 0.01 to 0.02% BWOB; and an aqueous alkaline solution in an amount of 50 to 60% BWOB. The hematite-based fly ash composition has a thickening time of from 80 to 580 minutes at 195° F. and a plastic viscosity of 150 to 350 cP.
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
C04B 24/42 - Composés comportant au moins une liaison carbone-silicium
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
C09K 8/48 - Additifs pour l'augmentation de la densité ou du poids
E21B 33/138 - Plâtrage de la paroi du trou de forageInjections dans la formation
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Onaizi, Sagheer A.
Iddrisu, Mustapha
Abrégé
A method of removing hydrogen sulfide from a subterranean geological formation includes mixing a cobalt-imidazolate material with an organic liquid containing one or more unsaturated oil to form a drilling fluid suspension with a pH of 10 or more. The cobalt-imidazolate material is a ZIF-67 and is present in an amount of 0.1 to 2.5 percent by weight of the drilling fluid suspension. The method further includes injecting the drilling fluid suspension in the subterranean geological formation and circulating the drilling fluid suspension in the subterranean geological formation and forming an oil-based mud to scavenge hydrogen sulfide from the subterranean geological formation.
B01J 20/28 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation caractérisées par leur forme ou leurs propriétés physiques
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Siddiqi, Umair Farooq
Abrégé
A field-programmable gate array (FPGA) routing tool within a computer-aided design system. The tool includes an input device for receiving a netlist containing nets with source nodes, sink nodes, and intermediate nodes at fixed positions. The tool further includes a processing circuitry configured with a design router responsible for constructing non-overlapping routing trees for all nets, ensuring connections from source nodes to sink nodes without exceeding fixed routing resource capacity of the FPGA. The design router utilizes incremental routing, which applies deterministic parallel routing to a window of initial iterations with high routing workload and sequential routing to subsequent iterations. Additionally, a display device is provided to continuously exhibit interconnections and routing utilization during the determination of routing trees.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Nazal, Mazen Khaled
Abuzaid, Nabeel Saeed Fuad
Gijjapu, Durga Rao
Abrégé
A membrane-biochar strip for water sampling includes two porous polymeric membrane sheets having the same dimension. The two porous polymeric membrane sheets have an average pore size of about 50 to 150 micrometers (μm). Seagrass biochar (SGBC) particles are disposed between two porous polymeric membrane sheets resulting in a sandwich structure. An edge of the sandwich structure is sealed, and the SGBC particles are encapsulated in the membrane-biochar strip. The SGBC particles have an average particle size of about 150 to 400 μm. The seagrass biochar (SGBC) particles are prepared from Halodule Uninervis seagrass.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Ahmed, Ashraf Hashim Babiker
Elkatatny, Salaheldin Mahmoud Ahmed
Abrégé
A method for reducing hydrogen sulfide (H2S) content of a H2S-containing subterranean formation includes drilling the H2S-containing subterranean formation to form a wellbore therein, injecting a drilling fluid composition into the wellbore during the drilling and circulating the drilling fluid composition in the wellbore, and recovering a product stream from the H2S-containing subterranean formation. The drilling fluid composition includes 0.01 to 0.5 wt. % of manganese tetroxide, based on the total weight of the drilling fluid composition. The manganese tetroxide is in the form of spherical-shaped particles having an average particle size (D50) in a range of 0.5 to 2 micrometers (μm), and a BET surface area of 2 to 3 meter square per gram (m2/g) of the manganese tetroxide.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Qureshi, Khurram Karim
Al-Mutairi, Eid M.
Iqbal, Sheikh Sharif
Habib, Md. Ahasan
Abrégé
A hollow-core photonic crystal fiber for sensing an oil includes a hexagonal core wall, a cladding region, and a circular layer. The hexagonal core wall defines a hollow space, where a core diameter is equal to a distance between two opposing inner vertices of the hexagonal core wall. The cladding region includes a circular cladding segment and up to four cladding arms, where the up to four cladding arms extend from the circular cladding segment to four outer vertices of the hexagonal core wall. An inner wall of the circular cladding segment, the up to four cladding arms and an outer surface of the hexagonal core wall define up to four wedge shaped air gaps. The cladding region has an inner radius with a range from 2.0 up to 2.4 times the core diameter and an outer radius with a range from 2.1 up to 2.6 times the core diameter.
G01N 21/45 - RéfringencePropriétés liées à la phase, p. ex. longueur du chemin optique en utilisant des méthodes interférométriquesRéfringencePropriétés liées à la phase, p. ex. longueur du chemin optique en utilisant les méthodes de Schlieren
59.
CERIUM-DOPED ZEOLITIC IMIDAZOLATE FRAMEWORK (CEY-ZIF-ZNI) BASED ELECTRODE FOR ELECTROCATALYTIC REDUCTION OF CO2 TO CO
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Alhooshani, Khalid
Abdulazeez, Ismail
Umar, Mustapha
Abrégé
An electrode includes a transparent glass substrate, and a cerium-doped zeolitic imidazolate framework (Cey-ZIF-zni) material at least partially covering a surface of the transparent glass substrate. A method of making the Cey-ZIF-zni. A method of electrochemical carbon dioxide (CO2) reduction (CO2RR) using the electrode.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Baig, Umair
Waheed, Abdul
Aljundi, Isam H.
Abrégé
A filtration membrane includes an alumina support; a polyamide network disposed on the alumina support and formed by polycondensation between piperazine (PIP) and isophthaloyl dichloride (IPC); and a polypyrrole-graphitic carbon nitride (PPy-G-C3N4) photocatalyst embedded in the polyamide network through covalent bonding, the PPy-G-C3N4 photocatalyst including nanosheets of graphitic carbon nitride (G-C3N4) embedded in a matrix of a polypyrrole (PPy) polymer. The membrane of the present disclosure can be used for separating oil and water.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
King Abdullah City for Atomic & Renewable Energy (K.A.CARE) (Arabie saoudite)
Inventeur(s)
Mokheimer, Esmail Mohamed Ali
Imteyaz, Binash
Alsulaiman, Fahad Abdulaziz
Abrégé
A solar-powered ammonia and oxygen production system is disclosed. The system includes an electrolyzer, a PV cell unit, an absorption cooling unit (ACU), a solar parabolic trough collector (PTC), a cryogenic air separation unit (CSU), a cooler, an air compressor, a hydrogen compressor and a nitrogen compressor, an air turbine, and a catalytic converter. The system utilizes these components to co-produce ammonia and oxygen while generating surplus power. The PTC is thermally coupled with the ACU to cool the air coming from the air compressor. The cold air is supplied to the CSU. The nitrogen output from the CSU feeds into the nitrogen compressor, and from there, to the catalytic converter. The hydrogen from the electrolyzer is compressed by the hydrogen compressor, and supplied to the catalytic converter. The catalytic converter further produces ammonia based on the hydrogen and nitrogen received therein.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Salih, Amar Kamal Mohmeadkhair
Drmosh, Qasem Ahmed Qasem
Kandiel, Tarek
Yamani, Zain Hassan
Abrégé
A method for coating a substrate with a Co—Pi modified BiVO4/WO3 heterostructure film includes direct current reactive sputtering tungsten (W) onto a substrate in a gaseous mixture containing oxygen to form a tungsten trioxide (WO3) film, direct current reactive sputtering bismuth (Bi) onto the tungsten trioxide (WO3) film in a gaseous mixture containing oxygen to form a dibismuth trioxide (Bi2O3) film, drop-casting a vanadyl acetylacetonate solution onto the Bi2O3 film and heating at a temperature of at least 450° C. in ambient air to convert the Bi2O3 film to a BiVO4 film, and photoelectrochemically coating the BiVO4 film with a cobalt-phosphate (Co—Pi) to form a modified film on the surface of the substrate. A photoanode containing the Co—Pi modified BiVO4/WO3 heterostructure film prepared by the method, and its application in water splitting.
C23C 18/12 - Revêtement chimique par décomposition soit de composés liquides, soit de solutions des composés constituant le revêtement, ne laissant pas de produits de réaction du matériau de la surface dans le revêtementDépôt par contact par décomposition thermique caractérisée par le dépôt sur des matériaux inorganiques, autres que des matériaux métalliques
C23C 28/00 - Revêtement pour obtenir au moins deux couches superposées, soit par des procédés non prévus dans un seul des groupes principaux , soit par des combinaisons de procédés prévus dans les sous-classes et
C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
C25B 11/091 - Électrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé d’au moins un élément catalytique et d’au moins un composé catalytiqueÉlectrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé de plusieurs éléments catalytiques ou composés catalytiques
C25D 3/56 - Dépôt électrochimiqueBains utilisés à partir de solutions d'alliages
C25D 5/00 - Dépôt électrochimique caractérisé par le procédéPrétraitement ou post-traitement des pièces
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Akhtar, Syed Sohail
Alotaibi, Amer Duraywish
Abubakar, Abba Abdulhamid
Hakeem, Abbas Saeed
Al-Athel, Khaled S.
Adesina, Akeem Yusuf
Abrégé
A functionally graded (FG) SiAlON composite cutting tool includes a cutting head having a cutting surface containing the FG SiAlON composite. The FG SiAlON composite is obtained by sintering one or more powder compositions containing SiO2 particles having a particle size of 20 to 50 nanometers (nm), AlN particles having a particle size of up to 100 nm, Si3N4 particles having a particle size of 300 to 500 nm, Al2O3 particles having a particle size of up to 100 nm, Yb2O3 particles having a particle size of up to 100 nm, and one or more reinforcement additives selected from the group consisting of cobalt (Co) particles, titanium carbonitride (TiCN) particles, cobalt alloy particles, and a boron nitride compound. The one or more reinforcement additives have an average particle size in a range of 50 nm to 35 micrometers (μm).
C04B 35/597 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de borures, nitrures ou siliciures à base d'oxynitrures de silicium
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Lawal, Dahiru Umar
Imteyaz, Binash
Aljundi, Isam Hassan
Antar, Mohamed Abdelkarim
Abrégé
A desalination and cooling system is disclosed, integrating an Ejector Cooling Cycle (ECC) system and a Direct Contact Membrane Distillation (DCMD) system. The ECC system includes a generator, an evaporator, an ejector, and a condenser. The generator produces a primary flow of refrigerant, the evaporator provides cooling and a secondary flow of the refrigerant, and the ejector combines these flows to generate a super-heated stream of the refrigerant, which the condenser cools. The DCMD system, including a feed chamber, a permeate chamber, a membrane with pores, and an external cooling source, allows water vapors from a hot stream to pass from the feed chamber to the permeate chamber. The ECC and DCMD systems are connected at the condenser, where the super-heated stream of the refrigerant heats the cold stream to produce the hot stream, facilitating efficient desalination and cooling.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Lawal, Dahiru Umar
Imteyaz, Binash
Aliyu, Farouq Muhammad
Fallatah, Wail Sulaiman
Abrégé
A desalination and cooling system integrating an Ejector Cooling Cycle (ECC) and a Sweeping Gas Membrane Distillation (SGMD) system. The ECC system includes a generator, an evaporator, an ejector, and a first condenser. The generator produces a primary flow of refrigerant, the evaporator provides cooling and a secondary flow of the refrigerant, and the ejector combines these flows to generate a super-heated stream of the refrigerant, which the first condenser cools. The SGMD system, comprising a feed chamber, a sweeping gas chamber, a membrane with pores, and a second condenser, allows water vapors from a hot stream to pass from the feed chamber to the sweeping gas chamber of the SGMD system. The ECC and SGMD systems are connected at the first condenser, where the super-heated stream of the refrigerant heats the cold stream to produce the hot stream, facilitating efficient desalination and cooling.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Alquaity, Awad Bin Saud
Talha, Muhammad
Al-Mudhhi, Elyas Abdulwahab Mohammed
Alzaid, Zaid Jassim
Al-Rashdi, Mohammed Musallam Mohammed
Alqahtani, Alwaleed Ibrahim Ali
Abrégé
A system and a method for desalination of water is provided. The desalination system includes an ultrasonic chamber to store saline water, an ultrasonic transducer disposed within the ultrasonic chamber, and a collection chamber coupled to the ultrasonic chamber. The ultrasonic transducer generates an aerosol including water particles from the saline water. A vertical distance between a lower region and an upper region of the ultrasonic chamber is above a pre-determined threshold value so that an average size of the water particles of the aerosol is reduced by gravity to 5 μm or less. A fan is provided to transfer the aerosol from the upper region of the ultrasonic chamber to the collection chamber. The collection chamber is configured such that the water particles in the aerosol condense to form liquid water in the collection chamber, which has a lower salt concentration than the saline water.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Helal, Aasif
Aziz, Md. Abdul
Shah, Syed Shaheen
Fettouhi, Mohammed
Abrégé
An electrode includes a metallic substrate and a layer of cobalt (Co) and cadmium (Cd) doped bimetallic metal-organic framework (BMMOF11) material at least partially covering a surface of the metallic substrate. The BMMOF11 material contains irregular shaped microcrystalline structures with pointed edges, and the irregular shaped microcrystalline structures are in the form of sheets that are stacked on top of one another. A method of making the electrode, and a method of electrochemical water splitting.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Khalid, Muhammad
Abrégé
A reactive power support system for a radial distribution network includes multiple loads, a radial distribution transmission line (RDTL) connected at a first end to a grid transformer, a point of common coupling (PCC) connected to a second end of the RDTL, a solar power inverter connected in parallel with a photovoltaic module and an inverter controller connected to the inverter. An output terminal of the inverter is connected to the PCC. Each load is connected by a load bus to the RDTL. The inverter controller provides gate control signals which switch a set of transistor gates of the inverter to operate at less than or greater than a unity power factor to inject or to absorb the reactive power, respectively, at the PCC in order to regulate a voltage of the RDTL during a three-phase to ground fault on a load bus connected to one of the loads.
H02J 3/18 - Dispositions pour réglage, élimination ou compensation de puissance réactive dans les réseaux
H02M 7/537 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur
69.
HYBRID SOL-GEL COATINGS WITH WASTE-MATERIAL ADDITIVES FOR REDUCING CORROSION
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Suleiman, Rami K.
Kumar, A. Madhan
Al-Badour, Fadi A.
Abrégé
A method of reducing corrosion, including coating a surface of a substrate with a corrosion inhibitor and drying to form a coated substrate. The coated substrate when contacted with a corrosive medium has a charge transfer resistance (Rct) of at least 2,000 kΩ. The corrosion inhibitor includes a sol-gel and limestone. The sol-gel includes reacted units of aminopropyltriethoxysilane (APTES), tetraethyl orthosilicate (TEOS), dimethoxy-methyl-octadecylsilane (DMMOS), vinyltrimethoxysilane (VTMS), and zirconium(IV) propoxide.
C23F 11/18 - Inhibition de la corrosion de matériaux métalliques par application d'inhibiteurs sur la surface menacée par la corrosion ou par addition d'inhibiteurs à l'agent corrosif dans d'autres liquides au moyen d'inhibiteurs inorganiques
C23C 22/73 - Traitement chimique de surface de matériaux métalliques par réaction de la surface avec un milieu réactif laissant des produits de réaction du matériau de la surface dans le revêtement, p. ex. revêtement par conversion, passivation des métaux caractérisé par le procédé
C23F 11/10 - Inhibition de la corrosion de matériaux métalliques par application d'inhibiteurs sur la surface menacée par la corrosion ou par addition d'inhibiteurs à l'agent corrosif dans d'autres liquides au moyen d'inhibiteurs organiques
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Alahmed, Fatimah Abdullah
Baroudi, Uthman
Hawwa, Muhammad
Abrégé
A robotic system for surface marking comprises a plotter configured to move along x, y and z axes; a chassis configured to hold a plurality of components of the robotic system; one or more ultrasonic sensors mounted on a periphery of the chassis and configured to detect obstacles during movement of the robotic system; at least three drive members coupled to a motor unit configured to control the movement of the robotic system on a surface; and a computer processor having program instructions for controlling the robotic system. The movement of the robotic system is controlled with the computer processor so as to move the plotter and form a marking on the surface based on a pre-determined surface marking stored in a memory of the computer processor.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Lawal, Dahiru Umar
Imteyaz, Binash
Khalifa, Atia Esmaeil Atia
Abrégé
A desalination and cooling system integrating an Ejector Cooling Cycle (ECC) system and a Permeate Gap Membrane Distillation (PGMD) system. The ECC system includes a generator, an evaporator, an ejector, and a condenser. The generator produces a primary flow of refrigerant, the evaporator provides cooling and a secondary flow of the refrigerant, and the ejector combines these flows to generate a super-heated stream of the refrigerant, which the condenser cools. The PGMD system, including a feed chamber, a coolant chamber, a permeate gap chamber, and a membrane with pores, allows water vapors from a hot stream to pass from the feed chamber to the permeate gap chamber. The ECC and PGMD systems are connected at the condenser, where the super-heated stream of the refrigerant heats the cold stream to produce the hot stream, facilitating efficient desalination and cooling.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Lawal, Dahiru Umar
Abrégé
A desalination and cooling system integrating an Ejector Cooling Cycle (ECC) and a Vacuum Membrane Distillation (VMD) system. The ECC system includes a generator, an evaporator, an ejector, and a first condenser. The generator produces a primary flow of refrigerant, the evaporator provides cooling and a secondary flow of the refrigerant, and the ejector combines these flows to generate a super-heated stream of the refrigerant, which the first condenser cools. The VMD system includes a feed chamber, a vacuum chamber, a membrane with pores, and a second condenser, the membrane allows water vapors from a hot stream to pass from the feed chamber to the vacuum chamber. The ECC and VMD systems are connected at the first condenser, where the super-heated stream of the refrigerant heats the cold stream to produce the hot stream, facilitating efficient desalination and cooling.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Lawal, Dahiru Umar
Imteyaz, Binash
Baroud, Turki Nabieh
Zahid, Umer
Abrégé
A desalination and cooling system integrating an Ejector Cooling Cycle (ECC) and an Air Gap Membrane Distillation (AGMD) system. The ECC system includes a generator, an evaporator, an ejector, and a condenser. The generator produces a primary flow of refrigerant, the evaporator provides cooling and a secondary flow of the refrigerant, and the ejector combines these flows to generate a super-heated stream of the refrigerant, which the condenser cools. The AGMD system, comprising a feed chamber, a coolant chamber, an air gap chamber, and a membrane with pores, allows water vapors from a hot stream to pass from the feed chamber to the air gap chamber of the AGMD system. The ECC and AGMD systems are connected at the condenser, where the super-heated stream of the refrigerant heats the cold stream to produce the hot stream, facilitating efficient desalination and cooling.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Ibrir, Salim
Abrégé
Systems and methods for a variable-gain differentiator in series with at least two non-inverting amplifiers. The variable-gain differentiator is connected to a voltage-controlled source at its non-inverting input and to its output at its inverting input. The output is connected to the non-inverting input of the first non-inverting amplifier. The output of the first non-inverting amplifier is connected to the input of the second non-inverting amplifier. The output of the second non-inverting amplifier is connected to a series of three integrators. Each integrator is connected to its output by a feedback path.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Baig, Umair
Waheed, Abdul
Abrégé
A filtration membrane includes a thermoplastic substrate, a first layer comprising a polysulfone, a polyvinylpyrrolidone, and a tetramine, and a second layer comprising the tetramine and reacted units of a phthaloyl chloride cross-linked to form a polyamide. A method of preparing the filtration membrane by impregnating tetramine in an ultrafiltration support matrix for rapidly fabricating a hyper-cross-linked polyamide membrane. The membrane prepared by the method of present disclosure can be used for nanofiltration.
B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
B01D 69/10 - Membranes sur supportSupports pour membranes
B01D 71/44 - Polymères obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone, non prévus dans un seul des groupes
POLY(METHYL-DIALLYL AMMONIUM CHLORIDE) DECORATED WITH CATIONIC HYDROPHOBIC PENDANT AS AN ACIDIZING CORROSION INHIBITOR AND METHOD OF PREPARATION THEREOF
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Mazumder, Mohammad Abu Jafar
Ali, Shaikh Asrof
Goni, Lipiar Khan Mohammad Osman
Abrégé
A corrosion inhibitor composition is provided. The corrosion inhibitor composition includes a polycationic polymeric surfactant. The polycationic polymeric surfactant is a copolymer including polymerized units of cationic heterocyclic monomer units and dicationic heterocyclic comonomer units including a quaternary ammonium group. The cationic heterocyclic monomer units and the dicationic heterocyclic comonomer units are alkyl diallyl ammonium units. The quaternary ammonium group comprises a first C8-C16 alkyl group, a second C4-C8 alkyl group, a third C1-C2 alkyl group, and a fourth C1-C2 alkyl group. A method of corrosion inhibition is also provided.
C09K 15/30 - Compositions anti-oxydantesCompositions inhibant les modifications chimiques contenant des composés organiques contenant un hétérocycle avec au moins un azote comme membre du cycle
C09D 139/02 - Homopolymères ou copolymères de la vinylamine
C23F 11/04 - Inhibition de la corrosion de matériaux métalliques par application d'inhibiteurs sur la surface menacée par la corrosion ou par addition d'inhibiteurs à l'agent corrosif dans des liquides à réaction acide marquée
77.
METHOD AND SYSTEM OF DOTTIZATION OF ARABIC TEXT RASMS
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Saudi Data and Artificial Intelligence Authority (SDAIA) (Arabie saoudite)
Inventeur(s)
Ahmad, Irfan
Alhathloul, Zainab Hathloul
Abrégé
A method and a system for dottization of an Arabic Rasm utilizes natural language processing to add dots to Arabic Rasm. Initially, an input sequence of Arabic Rasms i.e., Arabic words without dots, is converted into a machine-readable input sequence. Further, components such as URLs, symbols, punctuation marks, white spaces, diacritics, and Kashida characters are removed, producing a normalized sequence. This sequence is then further refined by consolidating characters that appear in varied forms into single form of character. The consolidated sequence undergoes tokenization, generating multiple tokens. Each token is then padded at both its ends and fed into a trained recurrent neural network for processing, generating Arabic Rasms with dots. The output sequence from the network are the Arabic words with dots (Arabic word representing the Arabic Rasm with their respective dots), the output sequence is also mapped to input sequence as training set.
G06F 40/284 - Analyse lexicale, p. ex. segmentation en unités ou cooccurrence
G06N 3/0442 - Réseaux récurrents, p. ex. réseaux de Hopfield caractérisés par la présence de mémoire ou de portes, p. ex. mémoire longue à court terme [LSTM] ou unités récurrentes à porte [GRU]
78.
MAGNETIC BASED SAMPLER SYSTEM FOR WATER CONTAMINANTS
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Abuzaid, Nabeel Saeed Fuad
Hawwa, Muhammad
Nazal, Mazen Khaled
Abrégé
A sampler system includes an enclosure having a top, a bottom and a sidewall that is fluid permeable. The sampler system further includes a sampler apparatus housed within the enclosure. The sampler apparatus includes a sampling component having a support structure and an adsorbent. The sampler apparatus further includes an oscillating component including a spring which connects the sampling component to the bottom of the enclosure. A retaining component includes a first magnet attached to the sampling component and a second magnet separated from the first magnet by a gap.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Hossain, Mohammad Mozahar
Khan, Wasim Ullah
Abrégé
A method for producing hydrogen (H2) from methane (CH4) includes introducing a feed gas stream containing CH4 into a reactor containing a nickel (Ni) and cobalt (Co)-based titania supported (NCT) catalyst; passing the feed gas stream through the reactor in contact with the NCT catalyst at a temperature of 600 to 1000° C. to convert CH4 to carbon (C) and H2, and produce an H2-containing gas stream leaving the reactor; and separating H2 from the H2-containing gas stream. The method has a CH4 conversion of up to 95% of the initial weight of CH4 and a H2 yield of up to 90% based on the CH4 conversion.
C01B 3/26 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par décomposition de composés organiques gazeux ou liquides d'hydrocarbures avec des catalyseurs
B01J 21/06 - Silicium, titane, zirconium ou hafniumLeurs oxydes ou hydroxydes
B01J 35/10 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général solides caractérisés par leurs propriétés de surface ou leur porosité
B01J 37/00 - Procédés de préparation des catalyseurs, en généralProcédés d'activation des catalyseurs, en général
B01J 37/02 - Imprégnation, revêtement ou précipitation
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Iqbal, Naveed
Shams, Afaque
Al-Athel, Khaled
Al-Shaikhi, Ali
Abrégé
A method for determining a safe distance between a seismic source and an installation location of a nuclear reactor is disclosed. The method includes obtaining seismic data from a seismic sensor network located proximate the seismic source. The seismic sensor network includes a plurality of geophones each having seismic data receiver and configured to record seismic signals received from a geological formation under the installation location of the nuclear reactor. The plurality of geophones is communicatively coupled with a seismic data processor. The method includes processing seismic data with the seismic data processor to obtain an instantaneous frequency component from each of the geophones, comparing each of the instantaneous frequency components with a fundamental horizontal frequency of a substructure of nuclear reactor to determine a matching instantaneous frequency component, and determining safe distance between seismic source and installation location of the nuclear reactor based on matching instantaneous frequency component.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Waheed, Abdul
Baig, Umair
Abrégé
The present disclosure provides a filtration membrane. The filtration membrane includes a thermoplastic substrate, a first layer comprising a polysulfone, a polyvinylpyrrolidone, and a pentaamine, and a second layer comprising the pentaamine and reacted units of a phthaloyl chloride cross-linked to form a polyamide. A method of preparing the filtration membrane by impregnating pentaamine in an ultrafiltration support matrix for rapidly fabricating a hyper-cross-linked polyamide membrane is also disclosed. The membrane prepared by the method of present disclosure can be used for organic solvent nanofiltration (OSN).
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Qureshi, Khurram Karim
Mirza, Muhammad Jawad
Ghafoor, Salman Abdul
Armghan, Ammar
Abrégé
A system for amplifying optical signals includes a first isolator configured to generate a first isolated signal, a first pump, a first coupler for generating a first pumped signal, a first ytterbium doped fiber for receiving the first pumped signal and converting the first pumped signal to a first amplified signal, a second isolator for converting the first amplified signal into a second isolated signal, a second pump, a second coupler for generating a second pumped signal, a second ytterbium doped fiber configured to receive the second pumped signal and convert the second pumped signal into a second amplified signal, and a third isolator configured to receive the second amplified signal and convert the second amplified signal into an amplified optical signal. The first pump and the second pump are configured as co-propagating in-band asymmetrical pump sources for the first and second photons.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Alshehri, Ali Mohammad
Khalifa, Atia Esmail
Abrégé
A water desalination system including a sweeping gas membrane distillation (SGMD) unit in integration with a Jet Impingement Condenser (JIC) unit. The SGMD unit includes a water heater and a water pump connected through an inlet and an outlet to a semi-permeable membrane placed inside a distillation unit. The SGMD unit further includes an air compressor coupled to a humidity sensor, a pressure gauge, a temperature probe, and a flow meter. The JIC unit includes an air accumulation enclosure with an inlet, an air compressor outlet, and a coolant. The JIC unit further includes a perforated plate, and a condenser surface in contact with a sweeping gas inlet. The water desalination system further includes a power unit connected to the water heater and the coolant.
B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 103/08 - Eau de mer, p. ex. pour le dessalement
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Khan, Firoz
Al-Rasheidi, Masoud
Abrégé
A battery including in order a lithium anode layer, an electrolyte layer including a solid-state electrolyte, and a cathode layer. The cathode layer and the electrolyte layer are adjacent. The solid-state electrolyte includes a polymer matrix, a first lithium salt, and a zeolite. A first portion of the first lithium salt is present in pores of the zeolite to form a lithium loaded zeolite. The lithium loaded zeolite is dispersed in the polymer matrix. A second portion of the first lithium salt is dispersed in the polymer matrix. The cathode layer includes the lithium loaded zeolite, a second lithium salt, a conductive carbon compound, and a binding compound.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Jillani, Shehzada Muhammad Sajid
Waheed, Abdul
Baig, Umair
Aljundi, Isam H.
Abrégé
A membrane including a support and an active layer. The active layer includes reacted units of a functionalized mesoporous silica, a first polyamine compound, and a polyfunctional acid halide compound. The first portion of Si atoms in the functionalized mesoporous silica are replaced by Pr atoms. A second portion of the Si atoms in the functionalized mesoporous silica are functionalized with a second polyamine compound. The Pr atoms, the second portion of Si atoms functionalized with the second polyamine compound, and non-modified Si atoms in the functionalized mesoporous silica are covalently bonded in an alternating sequence. The functionalized mesoporous silica, the first polyamine compound, and the polyfunctional acid halide compound are interfacially polymerized on the support to form the membrane.
B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Saudi Data and Artificial Intelligence Authority (SDAIA) (Arabie saoudite)
Inventeur(s)
Luqman, Hamzah Abdullah
Abrégé
A sign language recognition system is described. The system includes a motion sensor, a processing circuitry and a display device. The motion sensor captures and records a dynamic sign language gesture as a sign video stream. The processing circuitry is configured with a key postures extractor, an accumulative video motion (AVM), and a sign recognition network (SRN). The key postures extractor captures main postures of the dynamic sign language gesture by extracting key frames in the sign video stream. The AVM captures motion of the sign video stream frames and transforms the motion in an AVM frame into a single AVM image. The SRN is configured as a convolutional network. The main postures and AVM image are fed into a two-stream network. The features from the two stream network are concatenated and fed into the SRN for learning fused features and performing classification of the sign language gesture.
G06V 40/20 - Mouvements ou comportement, p. ex. reconnaissance des gestes
G06V 10/34 - Lissage ou élagage de la formeOpérations morphologiquesSquelettisation
G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux
G06V 20/40 - ScènesÉléments spécifiques à la scène dans le contenu vidéo
87.
Ga2O3/La2O3-GAMMA Al2O3 CATALYSTS FOR CO2-MEDIATED OXIDATIVE DEHYDROGENATION OF PROPANE TO PROPYLENE
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Hossain, Mohammad Mozahar
Balogun, Majid Lasisi
Ba-Shammakh, Mohammed S.
Ahmed, Shakeel
Khan, Wasim Ullah
Abrégé
A method for producing propylene (C3H8) via oxidative dehydrogenation (ODH) of propane includes introducing a propane-containing feed gas stream into a reactor containing an alumina-supported Ga2O3/La2O3 catalyst comprising Ga2O3 particles at least partially disposed on surfaces of a matrix comprising rough and irregular-sized La2O3 and alumina particles; passing the propane-containing feed gas stream through the reactor in contact with the alumina supported Ga2O3/La2O3 catalyst at a temperature of 500 to 600° C. to convert at least a portion of the propane to propylene (C3H6) and produce a propylene-containing gas stream leaving the reactor; and separating the propylene from the propylene-containing gas stream. The method has a propane conversion of up to 95% based on an initial weight of the propane in the propane-containing feed gas stream, and a propylene yield of up to 60% based on the propane conversion.
B01J 23/08 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe du gallium, de l'indium ou du thallium
B01J 23/10 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe des terres rares
B01J 35/10 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général solides caractérisés par leurs propriétés de surface ou leur porosité
B01J 37/02 - Imprégnation, revêtement ou précipitation
C07C 5/32 - Préparation d'hydrocarbures à partir d'hydrocarbures contenant le même nombre d'atomes de carbone par déshydrogénation avec formation d'hydrogène libre
88.
Real-time monitoring system for personal protective equipment compliance at worksites
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Al-Azani, Sadam
Luqman, Hamzah
Alfarraj, Motaz
Sidig, Ala Elddin
Khan, Ayaz Ul Hassan
Al-Hamed, Dina Hamed
Abrégé
A system and method for real-time monitoring of personal protective equipment (PPE) compliance at a worksite. The system includes a processor, a host memory, a graphical processing unit (GPU), a GPU memory, a storage device, an input device, a plurality of cameras, and a display device. The system creates multiple inference engines and loads input frames from the storage device for pre-processing. The pre-processed frames are processed to obtain annotations and generate an output file. The system also includes a preparatory area and an operations area with cameras configured to capture and transmit video frames. The system can process input frames at a rate of at least 15 frames per second, providing real-time PPE compliance information.
G06V 10/764 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant la classification, p. ex. des objets vidéo
G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux
G06V 20/40 - ScènesÉléments spécifiques à la scène dans le contenu vidéo
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Raza, Arshad
Glatz, Guenther
Mahmoud, Mohamed
Murtaza, Mobeen
Saheed, Alade Olalekan
Mokheimer, Esmail Mohamed Ali
Kamal, Muhammad Shahzad
Abrégé
A thermochemical engine that includes a reaction chamber having a nitrite source inlet, an ammonium source inlet, and a gas outlet, and a gas-driven energy transducer coupled to the reaction chamber such that a gas produced in the reaction chamber moves the gas-driven energy transducer in a process of exiting the reaction chamber via the gas outlet. The thermochemical engine is configured to produce the gas under pressure by reacting in the reaction chamber a nitrite source comprising a nitrite ion and an ammonium source comprising an ammonium ion in the presence of water at a reaction temperature of 50 to 150° C.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Hossain, Mohammad Kamal
Abrégé
An Ag or WO3 nanoparticle decorated polymer substrate includes a treated polycarbonate (PC) substrate. The treated PC substrate has a roughened surface including polycarbonate structures in the form of circular shaped base structures covering a surface of the treated PC substrate, and nano-flowers directly grown on the circular shaped base structures. The nano-flowers have elongated petals extending therefrom. The circular shaped base structures have an average diameter of 2 to 10 micrometers (μm). The average width of the elongated petals of the nano-flowers is in a range of 60 to 400 nm. A plurality of Ag or WO3 nanoparticles are homogeneously disposed on the roughened surface of the treated PC substrate.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Al-Absi, Muneer A.
Abrégé
A radio frequency to direct current (RF-DC) converter for harvesting radio frequency energy includes an antenna circuit, and a plurality of cross-coupled differential-drive (CCDD) rectifier stage. The antenna circuit receives RF signals and outputs a positive signal at a positive RF terminal and outputs a negative signal output at a negative RF terminal. Each CCDD rectifier stage includes a first NMOS transistor, a first PMOS transistor, a second NMOS transistor and a second PMOS transistor. Each CCDD rectifier stage further includes two flying capacitors and two body capacitors. An input terminal is connected to a connection point between a source terminal of the first NMOS transistor and a source terminal of the second NMOS transistor. An output terminal is connected to a connection point between a source terminal of the first PMOS transistor and a source terminal of the second PMOS transistor.
H02M 7/217 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02J 50/00 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique
H02J 50/20 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant des micro-ondes ou des ondes radio fréquence
92.
SYSTEM AND METHOD OF QUANTUM-RESISTANT PASSWORDLESS AUTHENTICATION
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Al-Saggaf, Alawi Abdulrahman Hassan
Abrégé
A system and method for passwordless authentication for accessing a remote system is disclosed. The system includes an authentication server, a database, and a user computing device. The user computing device is configured to send a request to the authentication server. The authentication server is configured to generate, a lattice matrix, store the lattice matrix in the database, and return a lattice generator matrix (LGM) to the user computing device. The user computing device is further configured to compute a bioquantum of biometric data of a user based on the LGM using a post-quantum fuzzy commitment scheme (PQFC) and send the bioquantum to the authentication server for storage in the database.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Matin, Asif
Baig, Nadeem
Ahmad, Irshad
Anand, Deepak
Abrégé
A method of removing an organic micropollutant from a treatment solution including passing the treatment solution through a membrane, and collecting a filtered solution. The filtered solution contains at least 50% less of the organic micropollutant than the treatment solution. The membrane includes a polysulfone support and an active layer containing zinc oxide (ZnO) nanoparticles.
B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
B01J 20/06 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des oxydes ou des hydroxydes des métaux non prévus dans le groupe
B01J 20/28 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation caractérisées par leur forme ou leurs propriétés physiques
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
94.
SYSTEM AND METHOD FOR A MULTI-AGENT CONSENSUS BASED-VIRTUAL INERTIA CONTROLLER FOR LOW INERTIAL MICROGRIDS
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Alotaibi, Ibrahim Mohammad K.
Abido, Mohamed Ali
Abrégé
A control system to regulate frequency of an islanded microgrid that includes at least one grid-tied renewable energy source. The system includes a centralized ∞ controller, a multi-agent system, and a distributed control. The centralized ∞ controller generates active and reactive power setpoints. The multi-agent system is integrated into the grid through a grid-tied inverter coupled with an LCL filter. The distributed control controls the multi-agent system and the grid-tied inverter to adjust output power of a multi-agent microgrid storage cooperatively so that they achieve consensus in the energy while providing inertial support.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Khan, Safyan Akram
Ali, Shahid
Noorwali, Layan Mohammed
Mansha, Muhammad
Abrégé
A method of applying a pesticide composition to a target surface, including contacting the pesticide composition with the target surface; and leaving the pesticide composition on the target surface for a period of time. The pesticide composition includes a pesticide; and superparamagnetic iron oxide nanoparticles (SPIONs). An outer surface of the SPIONs have at least one coating selected from the group consisting of a polyethylene glycol, a compound with a carbon chain having up to 30 carbon atoms, a silane, and an aminosilane with a primary amine group to form coated SPIONs, where the pesticide interacts with the at least one coating on the coated SPIONs, and where the SPIONs are substantially spherical and have an average diameter of 10-30 nm.
A01N 43/20 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, contenant des composés hétérocycliques comportant des cycles avec un ou plusieurs atomes d'oxygène ou de soufre comme uniques hétéro-atomes du cycle avec un hétéro-atome des cycles à trois ou quatre chaînons
A01N 25/26 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, caractérisés par leurs formes, ingrédients inactifs ou modes d'applicationSubstances réduisant les effets nocifs des ingrédients actifs vis-à-vis d'organismes autres que les animaux nuisibles sous forme de particules revêtues
A01N 25/32 - Ingrédient réduisant l'effet nocif des substances actives vis-à-vis d'organismes autres que les animaux nuisibles, p. ex. réducteurs de toxicité, compositions autodestructrices
96.
FUSION BONDED EPOXY COATINGS AND PREPARATION METHOD AND APPLICATION THEREOF
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Kumar, A. Madhan
Suleiman, Rami K.
Hussein, Mohamed Abdrabou
Abrégé
A method for enhancing adhesion of a curable epoxy resin composition to a metal article includes applying a sol-gel mixture on the surface of the metal article and aging to form a sol-gel layer on the metal article and subsequently, electrospraying the curable epoxy resin composition on the sol-gel layer of the metal article, and curing the curable epoxy resin composition by heating thereby forming a fusion-bonded epoxy (FBE) layer on the sol-gel layer. The sol-gel layer is between the surface of the metal article and the FBE layer, and has an average thickness of 10 to 100 micrometers (μm). The FBE layer has a thickness of 70 to 130 μm.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Saleh, Tawfik Abdo
Abrégé
Aspects of the present disclosure are directed to a method for converting rubber waste to a functionalized activated carbon (AC). The method includes pyrolysis of waste/scrap tires to produce activated carbon; (ii) chemical activation of the activated carbon using an oxidizing agent; and (iii) and functionalization of the chemically activated carbon with 1,2,3,4,6-pentagalloylglucose (pentagallic acid ester of glucose) to produce the AC. The method of the present disclosure converts waste-to-value-added products, thereby enhancing profitability by recycling the waste products. Such processes are the source of renewable energy (gas and oil) and valuable by-products.
C01B 32/324 - Préparation caractérisée par les matières de départ à partir de matières résiduelles, p. ex. pneumatiques ou liqueur noire de sulfite résiduaire
C08J 11/12 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation uniquement par traitement à la chaleur sèche
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Hussein, Mohamed Abdrabou
Azeem, Mohammed Abdul
Kumar, Arumugam Madhan
Sorour, Ahmad Asaad
Abrégé
An antimicrobial alloy includes titanium, niobium, and silver. Further, the antimicrobial alloy includes between 5 and 30 atomic percent niobium, up to 3 atomic percent silver, the remaining atomic percentage is titanium, and the alloy does not include zirconium. The antimicrobial alloy has a predominantly beta-titanium crystal structure and an elasticity modulus ranging from 60 to 85 GPa. A process for manufacturing the antimicrobial alloy. The antimicrobial alloy prepared by the method can be used in bioimplants.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Ouis, Djamel
Abrégé
A twin pneumatic hammer is provided. The twin pneumatic hammer includes a first hammer head connected to a first pneumatic cylinder mounted on a first caliper arm, and a second hammer head connected to a second pneumatic cylinder mounted on a second caliper arm. The second hammer head is positioned opposite to the first hammer head. The first and second caliper arms are slidably coupled to a sliding track of a caliper base such that a distance between the first and second caliper arms may be adjusted. A plurality of tubing connects the first and the second pneumatic cylinders to a source of compressed air. An air controller is connected to the source of compressed air and performs a simultaneous impact stroke of the first and second hammer heads by controlling the release of compressed air into the plurality of tubing.
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Arabie saoudite)
Inventeur(s)
Mohammed, Amjed Mohammed Hassan Sheikh
Mahmoud, Mohamed Ahmed Nasr Eldin
Abu-Khamsin, Sidqi Ahmad
El-Husseiny, Ammar Husseiny Aly
Abrégé
2 on sand grains of the subterranean geologic formation to bind the sand grains together into a consolidated matrix in the subterranean geologic formation.