Abstract

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.

IPC Classes  ?

• G06T 7/55 - Depth or shape recovery from multiple images
• G06V 20/17 - Terrestrial scenes taken from planes or by drones
• G08G 5/00 - Traffic control systems for aircraft
• G08G 5/04 - Anti-collision systems

Abstract

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.

IPC Classes  ?

• G01S 3/74 - Multi-channel systems specially adapted for direction-finding, i.e. having a single antenna system capable of giving simultaneous indications of the directions of different signals
• G01S 3/14 - Systems for determining direction or deviation from predetermined direction

Abstract

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.

IPC Classes  ?

• B01D 61/46 - Apparatus therefor
• G01N 1/44 - Sample treatment involving radiation, e.g. heat
• G01N 33/18 - Water

Abstract

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.

IPC Classes  ?

• B01D 61/24 - Dialysis
• B01D 11/04 - Solvent extraction of solutions which are liquid
• B01D 63/04 - Hollow fibre modules comprising multiple hollow fibre assemblies
• G01N 1/34 - PurifyingCleaning
• G01N 1/40 - Concentrating samples
• G01N 33/487 - Physical analysis of biological material of liquid biological material

Abstract

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.

IPC Classes  ?

• H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
• H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

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.

IPC Classes  ?

• A61N 2/00 - Magnetotherapy
• A61N 2/02 - Magnetotherapy using magnetic fields produced by coils, including single turn loops or electromagnets

Abstract

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.

IPC Classes  ?

• A01K 15/02 - Training or exercising equipment, e.g. mazes or labyrinths for animals

Abstract

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.

IPC Classes  ?

• C04B 28/02 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
• C04B 14/30 - Oxides other than silica
• C04B 22/06 - OxidesHydroxides
• C04B 24/18 - Lignin sulfonic acid or derivatives thereof, e.g. sulfite lye
• C04B 24/20 - Sulfonated aromatic compounds
• C04B 24/42 - Compounds having one or more carbon-to-silicon linkages
• C04B 40/00 - Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
• C09K 8/48 - Density increasing or weighting additives
• E21B 33/138 - Plastering the borehole wallInjecting into the formation
• C04B 103/20 - Retarders
• C04B 103/32 - Superplasticisers
• C04B 103/50 - DefoamersAir detrainers

Abstract

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.

IPC Classes  ?

• E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
• B01D 53/52 - Hydrogen sulfide
• B01D 53/78 - Liquid phase processes with gas-liquid contact
• B01J 20/18 - Synthetic zeolitic molecular sieves
• B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
• C09K 8/34 - Organic liquids
• C09K 8/54 - Compositions for in situ inhibition of corrosion in boreholes or wells

Abstract

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.

IPC Classes  ?

• B01D 53/10 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents with dispersed adsorbents
• B01J 20/22 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising organic material

Abstract

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.

IPC Classes  ?

• G06F 30/30 - Circuit design
• G06F 30/347 - Physical level, e.g. placement or routing
• G06F 30/394 - Routing
• G06F 30/396 - Clock trees

Abstract

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.

IPC Classes  ?

• G01N 33/18 - Water
• C01B 32/318 - Preparation characterised by the starting materials

Abstract

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.

IPC Classes  ?

• C09K 8/532 - Sulfur

Abstract

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.

IPC Classes  ?

• G02B 6/02 - Optical fibres with cladding
• G01N 21/45 - RefractivityPhase-affecting properties, e.g. optical path length using interferometric methodsRefractivityPhase-affecting properties, e.g. optical path length using Schlieren methods

Abstract

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.

IPC Classes  ?

• C25B 11/085 - Organic compound
• C25B 1/23 - Carbon monoxide or syngas
• C25B 11/067 - Inorganic compound e.g. ITO, silica or titania

Abstract

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.

IPC Classes  ?

• B01D 71/62 - Polycondensates having nitrogen-containing heterocyclic rings in the main chain
• B01D 61/38 - Liquid-membrane separation
• B01D 69/10 - Supported membranesMembrane supports
• B01D 69/14 - Dynamic membranes
• B01D 71/02 - Inorganic material

Abstract

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.

IPC Classes  ?

• C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes
• B01J 21/04 - Alumina
• B01J 23/58 - Platinum group metals with alkali- or alkaline earth metals or beryllium
• B01J 35/04 - Foraminous structures, sieves, grids, honeycombs
• C01C 1/04 - Preparation of ammonia by synthesis
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C25B 9/19 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms

Abstract

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).

IPC Classes  ?

• C04B 35/597 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides based on silicon oxynitrides
• C04B 35/64 - Burning or sintering processes

Abstract

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.

IPC Classes  ?

• B01D 61/36 - PervaporationMembrane distillationLiquid permeation
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• C02F 103/08 - Seawater, e.g. for desalination
• F25B 1/06 - Compression machines, plants or systems with non-reversible cycle with compressor of jet type, e.g. using liquid under pressure

Abstract

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.

IPC Classes  ?

• B01D 61/36 - PervaporationMembrane distillationLiquid permeation
• B01D 5/00 - Condensation of vapoursRecovering volatile solvents by condensation
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• C02F 103/08 - Seawater, e.g. for desalination
• F25B 1/06 - Compression machines, plants or systems with non-reversible cycle with compressor of jet type, e.g. using liquid under pressure

Abstract

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.

IPC Classes  ?

• C02F 1/36 - Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
• C02F 103/08 - Seawater, e.g. for desalination

Abstract

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.

IPC Classes  ?

• C25B 11/073 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C25B 11/031 - Porous electrodes
• C25B 11/043 - Carbon, e.g. diamond or graphene
• C25B 11/061 - Metal or alloy

Abstract

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.

IPC Classes  ?

• C23C 14/00 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
• C23C 14/08 - Oxides
• C23C 18/12 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
• C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C25B 1/55 - Photoelectrolysis
• C25B 11/091 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of at least one catalytic element and at least one catalytic compoundElectrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of two or more catalytic elements or catalytic compounds
• C25D 3/56 - ElectroplatingBaths therefor from solutions of alloys
• C25D 5/00 - Electroplating characterised by the processPretreatment or after-treatment of workpieces

Abstract

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.

IPC Classes  ?

• H02J 3/18 - Arrangements for adjusting, eliminating or compensating reactive power in networks
• H02M 7/537 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters

Abstract

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.

IPC Classes  ?

• C23F 11/18 - Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
• C23C 22/73 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
• C23F 11/10 - Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors

Abstract

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.

IPC Classes  ?

• E01C 23/16 - Devices for marking-out, applying or forming traffic or like markings on finished pavingProtecting fresh markings
• B25J 5/00 - Manipulators mounted on wheels or on carriages
• B25J 11/00 - Manipulators not otherwise provided for

Abstract

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.

IPC Classes  ?

• B01D 61/36 - PervaporationMembrane distillationLiquid permeation
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• F25B 1/06 - Compression machines, plants or systems with non-reversible cycle with compressor of jet type, e.g. using liquid under pressure

Abstract

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.

IPC Classes  ?

• B01D 61/36 - PervaporationMembrane distillationLiquid permeation
• B01D 3/10 - Vacuum distillation
• B01D 5/00 - Condensation of vapoursRecovering volatile solvents by condensation
• C02F 1/04 - Treatment of water, waste water, or sewage by heating by distillation or evaporation
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• F25B 1/06 - Compression machines, plants or systems with non-reversible cycle with compressor of jet type, e.g. using liquid under pressure

Abstract

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.

IPC Classes  ?

• B01D 61/36 - PervaporationMembrane distillationLiquid permeation
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• C02F 103/08 - Seawater, e.g. for desalination
• F25B 1/06 - Compression machines, plants or systems with non-reversible cycle with compressor of jet type, e.g. using liquid under pressure

Abstract

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.

IPC Classes  ?

• H03G 3/00 - Gain control in amplifiers or frequency changers
• H03F 3/45 - Differential amplifiers
• H03G 1/00 - Details of arrangements for controlling amplification
• H03G 3/30 - Automatic control in amplifiers having semiconductor devices

Abstract

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.

IPC Classes  ?

• B01D 69/12 - Composite membranesUltra-thin membranes
• B01D 61/02 - Reverse osmosisHyperfiltration
• B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
• B01D 69/10 - Supported membranesMembrane supports
• B01D 71/44 - Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups
• B01D 71/56 - Polyamides, e.g. polyester-amides
• B01D 71/68 - PolysulfonesPolyethersulfones

Abstract

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.

IPC Classes  ?

• C09K 15/30 - Anti-oxidant compositionsCompositions inhibiting chemical change containing organic compounds containing heterocyclic ring with at least one nitrogen atom as ring member
• C08F 126/04 - Diallylamine
• C09D 5/08 - Anti-corrosive paints
• C09D 139/02 - Homopolymers or copolymers of vinylamine
• C23F 11/04 - Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly acid liquids

Abstract

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.

IPC Classes  ?

• G06F 40/284 - Lexical analysis, e.g. tokenisation or collocates
• G06N 3/0442 - Recurrent networks, e.g. Hopfield networks characterised by memory or gating, e.g. long short-term memory [LSTM] or gated recurrent units [GRU]

Abstract

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.

IPC Classes  ?

• G01N 1/34 - PurifyingCleaning

Abstract

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.

IPC Classes  ?

• C01B 3/26 - Production of hydrogen or of gaseous mixtures containing hydrogen by decomposition of gaseous or liquid organic compounds of hydrocarbons using catalysts
• B01J 21/06 - Silicon, titanium, zirconium or hafniumOxides or hydroxides thereof
• B01J 23/755 - Nickel
• B01J 35/10 - Solids characterised by their surface properties or porosity
• B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
• B01J 37/02 - Impregnation, coating or precipitation
• B01J 37/03 - PrecipitationCo-precipitation
• B01J 37/04 - Mixing
• B01J 37/08 - Heat treatment
• B01J 37/18 - Reducing with gases containing free hydrogen
• C01B 32/162 - Preparation characterised by catalysts

Abstract

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.

IPC Classes  ?

• G01V 1/00 - SeismologySeismic or acoustic prospecting or detecting
• G01V 1/18 - Receiving elements, e.g. seismometer, geophone
• G01V 1/30 - Analysis

Abstract

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).

IPC Classes  ?

• B01D 69/12 - Composite membranesUltra-thin membranes
• B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
• B01D 69/04 - Tubular membranes
• B01D 71/56 - Polyamides, e.g. polyester-amides

Abstract

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.

IPC Classes  ?

• H01S 3/067 - Fibre lasers
• H01S 3/094 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
• H01S 3/16 - Solid materials

Abstract

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.

IPC Classes  ?

• B01D 61/36 - PervaporationMembrane distillationLiquid permeation
• B01D 5/00 - Condensation of vapoursRecovering volatile solvents by condensation
• B01D 63/06 - Tubular membrane modules
• B01D 63/08 - Flat membrane modules
• B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• C02F 103/08 - Seawater, e.g. for desalination

Abstract

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.

IPC Classes  ?

• H01M 10/0562 - Solid materials
• H01M 10/052 - Li-accumulators
• H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type

Abstract

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.

IPC Classes  ?

• B01D 69/14 - Dynamic membranes
• B01D 61/02 - Reverse osmosisHyperfiltration
• B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
• B01D 69/12 - Composite membranesUltra-thin membranes
• B01D 71/02 - Inorganic material
• B01D 71/56 - Polyamides, e.g. polyester-amides
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis

Abstract

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.

IPC Classes  ?

• G06V 40/20 - Movements or behaviour, e.g. gesture recognition
• G06V 10/34 - Smoothing or thinning of the patternMorphological operationsSkeletonisation
• G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
• G06V 20/40 - ScenesScene-specific elements in video content

Abstract

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.

IPC Classes  ?

• B01J 23/08 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of gallium, indium or thallium
• B01J 23/10 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of rare earths
• B01J 35/10 - Solids characterised by their surface properties or porosity
• B01J 37/02 - Impregnation, coating or precipitation
• B01J 37/03 - PrecipitationCo-precipitation
• B01J 37/04 - Mixing
• B01J 37/08 - Heat treatment
• C07C 5/32 - Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen

Abstract

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.

IPC Classes  ?

• G06V 20/52 - Surveillance or monitoring of activities, e.g. for recognising suspicious objects
• G06Q 50/08 - Construction
• G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
• G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
• G06V 20/40 - ScenesScene-specific elements in video content
• G06V 20/64 - Three-dimensional objects
• G06V 40/10 - Human or animal bodies, e.g. vehicle occupants or pedestriansBody parts, e.g. hands

Abstract

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.

IPC Classes  ?

• C23C 14/20 - Metallic material, boron or silicon on organic substrates
• C08J 7/06 - Coating with compositions not containing macromolecular substances
• C23C 14/00 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material

Abstract

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.

IPC Classes  ?

• H04L 9/40 - Network security protocols
• G06F 17/16 - Matrix or vector computation

Abstract

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.

IPC Classes  ?

• B01D 69/14 - Dynamic membranes
• B01D 61/02 - Reverse osmosisHyperfiltration
• B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
• B01D 69/12 - Composite membranesUltra-thin membranes
• B01D 71/02 - Inorganic material
• B01D 71/56 - Polyamides, e.g. polyester-amides
• B01J 20/06 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group
• B01J 20/26 - Synthetic macromolecular compounds
• B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis

Abstract

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.

IPC Classes  ?

• H02M 7/217 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
• H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power
• H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves

Abstract

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.

IPC Classes  ?

• B01J 7/02 - Apparatus for generating gases by wet methods
• F03G 7/00 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for

Abstract

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.

IPC Classes  ?

• H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
• H02J 3/18 - Arrangements for adjusting, eliminating or compensating reactive power in networks
• H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

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.

IPC Classes  ?

• A01N 43/20 - Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atom with one hetero atom three- or four-membered rings
• A01N 25/26 - Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of applicationSubstances for reducing the noxious effect of the active ingredients to organisms other than pests in coated particulate form
• A01N 25/32 - Ingredients for reducing the noxious effect of the active substances to organisms other than pests, e.g. toxicity reducing compositions, self-destructing compositions

Abstract

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.

IPC Classes  ?

• C09D 163/00 - Coating compositions based on epoxy resinsCoating compositions based on derivatives of epoxy resins
• B05D 1/00 - Processes for applying liquids or other fluent materials

Abstract

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.

IPC Classes  ?

• C01B 32/324 - Preparation characterised by the starting materials from waste materials, e.g. tyres or spent sulfite pulp liquor
• C01B 32/198 - Graphene oxide
• C01B 32/342 - Preparation characterised by non-gaseous activating agents
• C01B 32/36 - Reactivation or regeneration
• C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
• C09C 1/48 - Carbon black

Abstract

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.

IPC Classes  ?

• C22C 14/00 - Alloys based on titanium
• C22C 1/04 - Making non-ferrous alloys by powder metallurgy
• C22F 1/18 - High-melting or refractory metals or alloys based thereon

Abstract

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.

IPC Classes  ?

• G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings

Abstract

A complex for treating a cancer includes gold, a 1,3-bis(2,6-di-isopropylphenyl)imidazole-2-ylidene ligand, and at least one phosphane ligand selected from the group consisting of bis(2-cyanoethyl)phenylphosphane, (1R,2R)-2-diphenylphosphano)-1 aminocyclohexane, (1R,2R)-2-diphenylphosphano)-1,2-diphenylethylamine, (R)-2 (diphenylphosphano)-1-phenylethylamine, (R)-1-(diphenylphosphano)-2-amino-3,3 dimethylbutane, tricyclohexylphosphane, and 3-(diphenylphosphano)propylamine), wherein the 1,3-bis(2,6-di-isopropylphenyl)imidazole-2-ylidene ligand and the at least one phosphane ligand are bonded to the gold.

IPC Classes  ?

• A61K 47/54 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
• A61P 35/00 - Antineoplastic agents

Abstract

A solar-powered ammonia and oxygen production system includes an electrolyzer, a PV cell unit, a heat exchanger, a solar tower, an air separation unit, a boiler, a first compressor, a second compressor and a third compressor, a turbine, a condenser, a water circulation pump, and a catalytic converter. The system utilizes these components to co-produce ammonia and oxygen while generating surplus power. The ambient air intake of the first compressor connects to the heat exchanger, which is thermally coupled to the solar tower. This hot air from the heat exchanger is supplied to the air separation unit. The nitrogen output from the air separation unit feeds into the boiler, and from there, to the catalytic converter. The boiler, turbine, condenser, and water circulation pump form a water/steam unit to rotate the turbine, producing mechanical energy that powers the first and second compressors.

IPC Classes  ?

• C25B 1/27 - Ammonia
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C25B 9/65 - Means for supplying currentElectrode connectionsElectric inter-cell connections
• C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes

Abstract

A filtration membrane including a first layer comprising a polyester terephthalate nonwoven fabric, a second layer comprising a polyvinylidene fluoride matrix doped with a polyvinylpyrrolidone and titanium dioxide nanoparticles, and a third layer comprising a polypyrrole polymer. A method of making the membrane is also described. The membrane of the present disclosure is self-cleaning under visible light irradiation conditions.

IPC Classes  ?

• B01D 69/14 - Dynamic membranes
• B01D 17/04 - Breaking emulsions
• B01D 65/02 - Membrane cleaning or sterilisation
• B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
• B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
• B01D 71/34 - Polyvinylidene fluoride
• B01D 71/48 - Polyesters
• B01D 71/62 - Polycondensates having nitrogen-containing heterocyclic rings in the main chain
• C02F 1/32 - Treatment of water, waste water, or sewage by irradiation with ultraviolet light
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• C02F 1/72 - Treatment of water, waste water, or sewage by oxidation

Abstract

A method of detecting SARS-COV in a sample includes contacting a metal-organic framework with at least one fluorophore-labeled single-stranded probe deoxyribose nucleic acid (DNA) to form a biosensor. The metal-organic framework of the method is zeolitic imidazolate framework-8 (ZIF-8), and the fluorophore-labeled single-stranded probe DNA (p-DNA) has a fluorescence signal at 513 to 517 nm. The method further includes contacting the sample with the biosensor in a solution, and the sample comprises a target sequence of SARS-COV. The target sequence of SARS-COV and the fluorophore-labeled single-stranded p-DNA of the method hybridize to form a double-stranded product. Following the step of the hybridization forming the double-stranded product, the method includes detecting the double-stranded product by observing a change in fluorescence.

IPC Classes  ?

• G16H 50/80 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for detecting, monitoring or modelling epidemics or pandemics, e.g. flu
• G01N 33/58 - Chemical analysis of biological material, e.g. blood, urineTesting involving biospecific ligand binding methodsImmunological testing involving labelled substances

Abstract

2 on sand grains of the subterranean geologic formation to bind the sand grains together into a consolidated matrix in the subterranean geologic formation.

IPC Classes  ?

• C09K 8/57 - Compositions based on water or polar solvents

Abstract

2 on sand grains of the subterranean geologic formation to bind the sand grains together into a consolidated matrix in the subterranean geologic formation.

IPC Classes  ?

• C09K 8/57 - Compositions based on water or polar solvents

Abstract

2 on sand grains of the subterranean geologic formation to bind the sand grains together into a consolidated matrix in the subterranean geologic formation.

IPC Classes  ?

• C09K 8/57 - Compositions based on water or polar solvents

Abstract

A process for separating 1-butene from a C4 raffinate gas composition includes introducing the C4 raffinate gas composition to a reactor containing an adsorbent material and passing the C4 raffinate gas composition through the adsorbent material; adsorbing the 1-butene from the C4 raffinate gas composition onto the adsorbent material to separate the 1-butene from the C4 raffinate gas composition and form a residue gas composition; and desorbing the 1-butene by heating the adsorbent material after the adsorbing to form the 1-butene and regenerate the adsorbent material. The adsorbent material is at least one of a zeolite adsorbent and an alkali-modified zeolite adsorbent having at least 99% by weight selective towards 1-butene for adsorption in comparison to iso-butene and iso-butane.

IPC Classes  ?

• C07C 7/13 - Purification, separation or stabilisation of hydrocarbonsUse of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers by molecular-sieve technique
• B01J 20/18 - Synthetic zeolitic molecular sieves
• B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
• B01J 20/30 - Processes for preparing, regenerating or reactivating
• C07C 11/08 - Alkenes with four carbon atoms

Abstract

A membrane reactor (MR) system includes an enclosure. The enclosure includes a shell, a front cap and a back cap. The shell is porous and includes a steam-methane reforming (SMR) catalyst. The MR system includes a feed inlet fluidly connected to the enclosure and configured to receive a feed gas comprising CH4 and H2O. At least one tube is disposed inside the enclosure and having a sidewall defining a feed side and a sweep side. The feed side is connected to the feed inlet to receive the feed gas that is configured to produce H2 catalyzed by the SMR catalyst of the shell. The sidewall includes a palladium silver (Pd—Ag) membrane configured to selectively permeate the H2 from the feed side to the sweep side. A sweep inlet is connected to the sweep side and configured to receive a sweep gas to carry and transport the H2.

IPC Classes  ?

• C01B 3/26 - Production of hydrogen or of gaseous mixtures containing hydrogen by decomposition of gaseous or liquid organic compounds of hydrocarbons using catalysts

Abstract

A method of generating oxygen including applying a potential of greater than 0 to 2.0 V to an electrochemical cell. The electrochemical cell is at least partially submerged in an aqueous solution, where on applying the potential the aqueous solution is oxidized thereby forming oxygen. The electrochemical cell includes an electrocatalyst; and a counter electrode. The electrocatalyst includes a nickel foam substrate; and a layer of particles of a FeNi alloy on the surface of the nickel foam substrate, where the particles of the FeNi alloy are in the form of nanosheets, where the nanosheets have average width of 1-5 μm and an average length of 1-10 μm, and where the nanosheets are vertically aligned to form a flower shape.

IPC Classes  ?

• C25B 11/089 - Alloys
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C25B 11/02 - ElectrodesManufacture thereof not otherwise provided for characterised by shape or form
• C25B 11/061 - Metal or alloy

Abstract

5 in the form of nanosheets. The nanosheets have an average width of 200 nanometers (nm) to 800 nm and form a hierarchical structure.

IPC Classes  ?

• C07C 41/01 - Preparation of ethers
• C07C 29/15 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively

Abstract

A wireless sensor network (WSN) and a method of routing in a wireless sensor network (WSN) includes wireless sensor nodes for monitoring an environment and a base station having a WSN manager to which information about the environment is sent from the wireless sensor nodes via multiple hop communication. The method includes responding to an attack on the wireless sensor network by an adversary to locate critical nodes among the wireless sensor nodes by adaptively deploying a sequence of different routing mechanisms, by the WSN manager, to the wireless sensor nodes such that location privacy preservation (LPP) is protected by preventing detection of location of the critical nodes.

IPC Classes  ?

• H04W 12/122 - Counter-measures against attacksProtection against rogue devices
• H04W 12/02 - Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
• H04W 84/18 - Self-organising networks, e.g. ad hoc networks or sensor networks

Abstract

A system for monitoring glucose concentration that includes a sample holder configured to contain a sample and a radio frequency transmitter configured to emit microwave radiation through the sample. The radio frequency transmitter comprising a radio frequency generator and a first antenna. The radio frequency receiver is configured to receive microwave radiation transmitted from the radio frequency transmitter and passed through the sample, and convert the microwave radiation passed through the sample to an analog signal. The radio frequency receiver comprising a second antenna. The system also includes an analog readout circuit configured to receive the analog signal and process the analog signal into a modified analog signal, and a digital signal processing circuit configured to receive the modified analog signal, convert the modified analog signal into a digital signal, and determine the glucose concentration of the sample from the digital signal.

IPC Classes  ?

• G01N 22/00 - Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
• A61B 5/145 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value
• G01N 33/49 - Physical analysis of biological material of liquid biological material blood

Abstract

A method for recovering metals includes mixing AC5 with a first solution comprising at least one metal ion to produce an AC5-metal ion complex. The method includes separating the AC5-metal ion complex from a second solution. The method further includes regenerating AC5 by dissociating the at least one metal ion from the AC5-metal ion complex. AC5 is a tris-benzo-15-crown-5 compound.

IPC Classes  ?

• C22B 11/00 - Obtaining noble metals
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof

Abstract

A complex for treating cancer includes a 2-(di-tert-butylphosphino)biphenyl ligand and a bis(diphenylphosphino)alkane ligand. The complex is dinuclear having two gold atoms, wherein the 2-(di-tert-butylphosphino)biphenyl ligand and the bis(diphenylphosphino)alkane ligand are bonded to the gold atoms, and wherein the bis(diphenylphosphino)alkane ligand is bridging the two gold atoms.

IPC Classes  ?

• A61K 47/54 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
• A61P 35/00 - Antineoplastic agents

Abstract

The present disclosure provides an asymmetric supercapacitor that includes a negative electrode, a positive electrode, an ionic liquid electrolyte, and a separator. The negative electrode includes a tomato leaf activated carbon having a hierarchical porosity disposed on a first carbon cloth. The positive electrode includes a polyaniline disposed on a second carbon cloth; an ionic liquid electrolyte. The separator is located between the positive electrode and the negative electrode, and the ionic liquid electrolyte is present in and on the separator. The supercapacitor may be implemented in a heart pulse rate monitoring system.

IPC Classes  ?

• H01G 11/34 - Carbon-based characterised by carbonisation or activation of carbon
• H01G 11/26 - Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features
• H01G 11/48 - Conductive polymers
• H01G 11/58 - Liquid electrolytes
• H01G 11/86 - Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
• A61B 5/024 - Measuring pulse rate or heart rate

Abstract

A cement composition includes a curable component in an amount of 10 to 25 wt. %; a fine aggregate (FA) in an amount of 20 to 40 wt. %; a coarse aggregate (CA) in an amount of 40 to 50 wt. %; and an alkaline component in an amount of 5 to 15 wt. %, each wt. % based on the total weight of the cement composition. The curable component includes a cementitious material having an average particle size (D50) of 10 to 17 micrometers (μm), a limestone powder (LSP) material having a D50 of 13 to 19 μm, a red mud (RM) material having a D50 of 30 to 36 μm, a silicomanganese fume (SMF) material having a D50 of 28 to 34 μm, and a natural pozzolan (NP) material having a D50 of 13 to 19 μm.

IPC Classes  ?

• C04B 28/04 - Portland cements
• C04B 14/04 - Silica-rich materialsSilicates
• C04B 14/14 - Minerals of vulcanic origin
• C04B 14/28 - Carbonates of calcium
• C04B 18/04 - Waste materialsRefuse
• C04B 18/14 - Waste materialsRefuse from metallurgical processes
• C04B 22/06 - OxidesHydroxides

Abstract

A method of making an aluminum-cubic boron nitride (Al-cBN) composite includes mixing an aluminum powder and particles of cubic boron nitride (cBN) in a solvent and sonicating to form an Al-cBN mixture; drying the Al-cBN mixture to form a dried mixture powder; and sintering by pressing and heating the dried mixture powder to form the Al-cBN composite. The aluminum powder has an average particle size of 10 to 100 micrometers (μm). The cBN particles have an average particle size of from 10 to 100 μm, and are uniformly dispersed throughout the Al-cBN composite.

IPC Classes  ?

• C22C 1/05 - Mixtures of metal powder with non-metallic powder
• B22F 3/10 - Sintering only
• C04B 35/5831 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides based on boron nitride based on cubic boron nitride
• C04B 35/626 - Preparing or treating the powders individually or as batches
• C04B 35/645 - Pressure sintering
• C22C 21/00 - Alloys based on aluminium
• C22C 26/00 - Alloys containing diamond

Abstract

A method of enhanced oil recovery in a carbonate rock formation including injecting a mixture into the carbonate rock formation containing an oil composition and extracting the oil composition from the carbonate rock formation. The mixture includes 90-99.99 vol % of an aqueous solution and 0.01-10 vol % of a gemini cationic surfactant based on a total volume of the mixture and 1-2000 parts per million (ppm) of methylene blue, based on a total weight of the mixture. During the injecting at least a portion of the gemini cationic surfactant is adsorbed onto the carbonate rock formation, and at least 50% less by volume of the gemini cationic surfactant adsorbs onto the carbonate rock formation compared to a method under the same conditions but without the methylene blue.

IPC Classes  ?

• C09K 8/584 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants

Abstract

A method for separating bisphenol A (BPA) from an aqueous solution includes contacting an aqueous solution containing BPA with a polyimide polymer on a porous support; and passing at least a portion of the aqueous solution through the polyimide polymer to form a purified water permeate and a BPA residue retentate. The BPA residue retentate is present as a layer on an outside surface of the polyimide polymer. The polyimide polymer contains reacted units of a fluorinated phthalic monomer and one or more amino carboxyl aryl monomers.

IPC Classes  ?

• C02F 1/28 - Treatment of water, waste water, or sewage by sorption
• B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
• B01D 69/10 - Supported membranesMembrane supports
• B01D 71/56 - Polyamides, e.g. polyester-amides

Abstract

A method for coordinating deployment of unmanned aerial vehicles (UAVs) within a designated region involves obtaining constraint data that specifies the operational limitations under which the UAVs are allowed to operate. A cost function is defined, having a set of cost terms corresponding to these constraints, including a term for the energy consumption of each UAV. This energy consumption is the power required by each UAV to travel from a source to a destination along a prescribed flight path. The method includes executing a UAV-capacity maximization function that generates flight paths for the UAVs based on the cost function, which adjusts the flight paths to minimize the total energy consumed while ensuring that the UAVs do not breach the operational constraints.

IPC Classes  ?

• G08G 5/00 - Traffic control systems for aircraft
• G08G 5/04 - Anti-collision systems

Abstract

2 and CO; and regenerating the Ni/FSZ catalyst particles to form a regenerated catalyst and producing a residue gas stream leaving the reactor.

IPC Classes  ?

• C01B 3/26 - Production of hydrogen or of gaseous mixtures containing hydrogen by decomposition of gaseous or liquid organic compounds of hydrocarbons using catalysts
• B01J 23/80 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups with zinc, cadmium or mercury
• B01J 35/58 - Fabrics or filaments
• B01J 37/04 - Mixing
• B01J 37/08 - Heat treatment
• B01J 37/12 - Oxidising

Abstract

A method of making NiO nanoparticles is described, as well as a method of using NiO nanoparticles as an electrocatalyst component to a porous carbon electrode. The carbon electrode may be made of carbonized filter paper. Together, this carbon-supported NiO electrode may be used for water electrolysis. Using a pamoic acid salt in the NiO nanoparticle synthesis leads to smaller and monodisperse nanoparticles, which support higher current densities.

IPC Classes  ?

• C25B 11/077 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of a single catalytic element or catalytic compound the compound being a non-noble metal oxide
• B01J 23/755 - Nickel
• B01J 37/08 - Heat treatment
• C01G 53/04 - Oxides
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C25B 11/00 - ElectrodesManufacture thereof not otherwise provided for
• C25B 11/043 - Carbon, e.g. diamond or graphene

Abstract

Carbon nanofiber doped alumina (Al-CNF) supported MoCo catalysts in hydrodesulfurization (HDS), and/or boron doping, e.g., up to 5 wt % of total catalyst weight, can improve catalytic efficiency. Al-CNF-supported MoCo catalysts, (Al-CNF-MoCo), can reduce the sulfur concentration in fuel, esp. liquid fuel, to below the required limit in a 6 h reaction time. Thus, Al-CNF-MoCo has a higher catalytic activity than Al—MoCo, which may be explained by higher mesoporous surface area and better dispersion of MoCo metals on the AlCNF support relative to alumina support. The BET surface area of Al—MoCo may be 75% less than Al-CNF-MoCo, e.g., 166 vs. 200 m2/g. SEM images indicate that the catalyst nanoparticles can be evenly distributed on the surface of the CNF. The surface area of the AlMoCoB5% may be 206 m2/g, which is higher than AlMoCoB0% and AlMoCoB2%, and AlMoCoB5% has the highest HDS activity, removing more than 98% sulfur and below allowed levels.

IPC Classes  ?

• C10G 45/08 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbonsHydrofinishing characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof in combination with chromium, molybdenum, or tungsten metals, or compounds thereof
• B01J 21/04 - Alumina
• B01J 23/75 - Cobalt
• B01J 23/88 - Molybdenum
• B01J 35/30 - Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
• B01J 35/40 - Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
• B01J 35/61 - Surface area
• B01J 35/63 - Pore volume
• B01J 35/64 - Pore diameter
• B01J 37/02 - Impregnation, coating or precipitation
• C10G 45/14 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbonsHydrofinishing with moving solid particles

Abstract

A system, method, and non-transitory computer readable medium that perform blind signal estimation for single-input multiple-output systems. The method can include receiving, by the two or more receiver antennas of the receiver, an observed signal comprising the input signal and an additive noise term. The method can then form a data matrix using the observed signals from the two or more receiver antennas. The method can also include computing a singular value decomposition of the data matrix. The singular value decomposition can then be used to generate a parameter matrix. The method can then form a Toeplitz signal matrix using the parameter matrix. The method can estimating the input signal using the Toeplitz signal matrix.

IPC Classes  ?

• H04B 7/0456 - Selection of precoding matrices or codebooks, e.g. using matrices for antenna weighting
• H04B 7/0491 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more sectors, i.e. sector diversity
• H04B 7/08 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station

Abstract

A method for producing a submicron-/nano-jute carbon/epoxy composite anti-corrosion coating is described. The method includes heating a jute stick, grinding the jute stick to form a first powder; pyrolyzing the first powder to form a pyrolyzed carbon; grinding the pyrolyzed carbon to form a second powder; ball milling the second powder under the wet conditions to form a submicron-/nano-jutecarbon; mixing the submicron-/nano-jutecarbon, and an epoxy resin to form a first mixture; mixing a hardener with the first mixture to form a second mixture, and coating the second mixture on a mild steel substrate and curing to form the submicron-/nano-jutecarbon/epoxy composite anti-corrosion coating.

IPC Classes  ?

• C09D 5/08 - Anti-corrosive paints
• C08G 59/24 - Di-epoxy compounds carbocyclic
• C08G 59/50 - Amines
• C08K 3/04 - Carbon
• C09C 1/44 - Carbon
• C09C 3/04 - Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
• C09D 163/00 - Coating compositions based on epoxy resinsCoating compositions based on derivatives of epoxy resins

Abstract

Carbon nanofiber doped alumina (Al-CNF) supported MoCo catalysts in hydrodesulfurization (HDS), and/or boron doping, e.g., up to 5 wt % of total catalyst weight, can improve catalytic efficiency. Al-CNF-supported MoCo catalysts, (Al-CNF-MoCo), can reduce the sulfur concentration in fuel, esp. liquid fuel, to below the required limit in a 6 h reaction time. Thus, Al-CNF-MoCo has a higher catalytic activity than Al—MoCo, which may be explained by higher mesoporous surface area and better dispersion of MoCo metals on the AlCNF support relative to alumina support. The BET surface area of Al—MoCo may be 75% less than Al-CNF-MoCo, e.g., 166 vs. 200 m2/g. SEM images indicate that the catalyst nanoparticles can be evenly distributed on the surface of the CNF. The surface area of the AlMoCoB 5% may be 206 m2/g, which is higher than AlMoCoB 0% and AlMoCoB 2%, and AlMoCoB 5% has the highest HDS activity, removing more than 98% sulfur and below allowed levels.

IPC Classes  ?

• C10G 45/08 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbonsHydrofinishing characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof in combination with chromium, molybdenum, or tungsten metals, or compounds thereof
• B01J 21/04 - Alumina
• B01J 23/75 - Cobalt
• B01J 23/88 - Molybdenum
• B01J 35/30 - Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
• B01J 35/40 - Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
• B01J 35/61 - Surface area
• B01J 35/63 - Pore volume
• B01J 35/64 - Pore diameter
• B01J 37/02 - Impregnation, coating or precipitation
• C10G 45/14 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbonsHydrofinishing with moving solid particles

Abstract

Carbon nanofiber doped alumina (Al-CNF) supported MoCo catalysts in hydrodesulfurization (HDS), and/or boron doping, e.g., up to 5 wt % of total catalyst weight, can improve catalytic efficiency. Al-CNF-supported MoCo catalysts, (Al-CNF-MoCo), can reduce the sulfur concentration in fuel, esp. liquid fuel, to below the required limit in a 6 h reaction time. Thus, Al-CNF-MoCo has a higher catalytic activity than Al—MoCo, which may be explained by higher mesoporous surface area and better dispersion of MoCo metals on the AlCNF support relative to alumina support. The BET surface area of Al—MoCo may be 75% less than Al-CNF-MoCo, e.g., 166 vs. 200 m2/g. SEM images indicate that the catalyst nanoparticles can be evenly distributed on the surface of the CNF. The surface area of the AlMoCoB5% may be 206 m2/g, which is higher than AlMoCoB0% and AlMoCoB2%, and AlMoCoB5% has the highest HDS activity, removing more than 98% sulfur and below allowed levels.

IPC Classes  ?

• C10G 45/08 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbonsHydrofinishing characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof in combination with chromium, molybdenum, or tungsten metals, or compounds thereof
• B01J 21/04 - Alumina
• B01J 23/75 - Cobalt
• B01J 23/88 - Molybdenum
• B01J 35/30 - Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
• B01J 35/40 - Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
• B01J 35/61 - Surface area
• B01J 35/63 - Pore volume
• B01J 35/64 - Pore diameter
• B01J 37/02 - Impregnation, coating or precipitation
• C10G 45/14 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbonsHydrofinishing with moving solid particles

Abstract

A method of enhancing oil recovery from a carbonate reservoir containing a hydrocarbon mixture includes injecting the carbonate reservoir with a sea-water solution comprising a citric acid-based additive to displace the hydrocarbon mixture from the carbonate reservoir thereby forming a hydrocarbon mixture containing sea-water mixture; and separating the hydrocarbon mixture from the hydrocarbon mixture containing sea-water mixture to recover the hydrocarbon mixture. The citric acid-based additive is present in the sea-water solution at a concentration of 1 to 1000 parts per million based on a total number of parts by weight of the sea-water solution. Particles of the citric acid-based additive are adsorbed on surfaces of the carbonate rocks in the carbonate reservoir.

IPC Classes  ?

• C09K 8/584 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
• C07C 231/02 - Preparation of carboxylic acid amides from carboxylic acids or from esters, anhydrides, or halides thereof by reaction with ammonia or amines
• C09K 8/514 - Compositions based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
• C09K 8/588 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
• E21B 43/20 - Displacing by water

Abstract

A method to form a metal matrix composite reinforced with eggshell (ES). The method includes preparing an ES powder, blending and milling the ES powder with at least one metal powder selected from the group consisting of magnesium (Mg), zirconium (Zr) to form a powder mixture, compacting and sintering the powder mixture to form the metal matrix composite. In addition, a Mg—Zr-ES metal matrix composite with improved corrosion resistance, having an amount of magnesium from 95 to 97 wt. %, an amount of zirconium from 1 to 2 wt. %, and an amount of ES from 1 to 4 wt. %, may be used for biomedical applications.

IPC Classes  ?

• B22F 7/00 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting
• B22F 1/052 - Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
• B22F 1/142 - Thermal or thermo-mechanical treatment
• B22F 3/12 - Both compacting and sintering
• C22C 1/04 - Making non-ferrous alloys by powder metallurgy
• C22C 1/05 - Mixtures of metal powder with non-metallic powder

Abstract

The disclosure provides a method of relaying a transmission between a source device and a destination device in a wireless communication network where one or more unmanned aerial vehicles (UAVs) in a plurality of UAVs have been activated to relay the transmission between the source device and the destination device. The method includes calculating a sum of SNRs associated with the one or more UAVs and determining whether the sum of the SNRs is less than a predetermined threshold. The method further includes, when the sum of the SNRs is less than the predetermined threshold, determining whether there is at least one UAV in the plurality of UAVs that has not been activated to relay the transmission. Also, the method includes, when there is at least one UAV that has not been activated to relay the transmission, activating one of the at least one UAV to relay the transmission.

IPC Classes  ?

• H04W 76/14 - Direct-mode setup
• H04B 17/336 - Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
• H04W 84/06 - Airborne or Satellite Networks

Abstract

A frequency reconfigurable (FR) slot-based UHF antenna for use in Cube-Sat is described. The antenna includes a dielectric circuit board, a metallic layer, a meandered slot line formed in the metallic layer, a feed horn is connected to a first edge of the circuit board, a reverse biased varactor diode, a ground terminal connected to the metallic layer and a biasing circuit configured to bias the reverse biased varactor diode. The biasing circuit causes the antenna to resonate in a frequency range of 300 MHz to 450 MHz. The meandered slot line includes a heptagonal path connected to and enclosing a rectangular path. An open end of the feed horn is directed towards the apex of the heptagonal path. The reverse biased varactor diode is connected to the metallic layer across the rectangular path and parallel to a central axis.

IPC Classes  ?

• H01Q 13/10 - Resonant slot antennas
• H01Q 1/28 - Adaptation for use in or on aircraft, missiles, satellites, or balloons
• H01Q 1/48 - Earthing meansEarth screensCounterpoises
• H01Q 5/307 - Individual or coupled radiating elements, each element being fed in an unspecified way

Abstract

A method of detecting Hg2+ ions in an aqueous solution is described. The method includes contacting the aqueous solution with a metal-organic framework (MOF) chemosensor composite to form a mixture and monitoring a change in an absorption and/or a fluorescence profile of the MOF chemosensor composite in the mixture to determine a presence or absence of Hg2+ ions in the aqueous solution. The MOF chemosensor composite includes fluorescein hydrazide (FH); and a MOF, including nickel as a metal ion and at least one trimesic acid (BTC) ligand. A hydrazide group on the fluorescein hydrazide coordinates to the metal ion of the MOF.

IPC Classes  ?

• G01N 21/3577 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
• G01N 21/17 - Systems in which incident light is modified in accordance with the properties of the material investigated

Abstract

A shared aperture multi-band antenna is described. The antenna includes a dielectric circuit board, a folded dipole microstrip antenna, and a lumped inductor. The folded dipole microstrip antenna is formed on a top side of the dielectric circuit board. The microstrip antenna includes two meander paths. The two meander paths enclose a shared aperture therebetween. The lumped inductor is inserted across a first gap near the third edge. A first pair of parallel metallic patches, a second pair of parallel metallic patches, and a third pair of parallel metallic patches are located on the bottom side. The antenna resonates in a dual band frequency range comprising a first resonance band in a range of 0.4 GHz to 0.6 GHz and a second resonance band in a range of 4.7 GHz to 5.8 GHz upon application of an input signal at both a first feed port and a second feed port.

IPC Classes  ?

• H01Q 9/26 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
• H01Q 1/27 - Adaptation for use in or on movable bodies
• H01Q 5/321 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
• H01Q 5/35 - Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using two or more simultaneously fed points
• H01Q 9/06 - Resonant antennas Details
• H05K 3/12 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using printing techniques to apply the conductive material

Abstract

A system, method, and non-transitory computer readable medium for ichnological classification of geological images are described. The method of ichnological classification of geological images includes receiving a geological image by a computing device having circuitry including a memory storing program instructions and one or more processors configured to perform the program instructions, formatting the geological image to generate a formatted geological image, applying the formatted geological image to a deep convolutional neural network (DCNN) trained to classify bioturbation indices, and matching the formatted geological image to a bioturbation index class.

IPC Classes  ?

• G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersectionsConnectivity analysis, e.g. of connected components
• E21B 25/00 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
• G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects

Abstract

A system, method, and non-transitory computer readable medium for in-field seismic data compression. The system includes geophones each having a 1-bit adaptive delta modulation for converting analog seismic signals to a modulated signal and transmitting the modulated signal, and a data collection center having a 1D convolutional neural network for receiving and compressing the transmitted modulated signal. The 1D CNN is configured to suppress quantization and random noise in the modulated signal.

IPC Classes  ?

• H03M 3/02 - Delta modulation, i.e. one-bit differential modulation
• H03M 7/30 - CompressionExpansionSuppression of unnecessary data, e.g. redundancy reduction
• H03M 7/34 - Conversion to or from delta modulation, i.e. one-bit differential modulation adaptive

Abstract

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, copper, and aluminum, in an amount of 0.01 to 1.5 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.

IPC Classes  ?

• C09K 8/54 - Compositions for in situ inhibition of corrosion in boreholes or wells
• B01D 53/52 - Hydrogen sulfide
• B01D 53/78 - Liquid phase processes with gas-liquid contact
• C01G 45/00 - Compounds of manganese
• C09K 8/03 - Specific additives for general use in well-drilling compositions
• E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
• E21B 41/02 - Equipment or details not covered by groups in situ inhibition of corrosion in boreholes or wells

Abstract

The perovskite solar cell (PSC) includes a first layer containing a conducting material coated glass plate as a substrate, a second layer containing copper doped nickel oxide, a third layer containing a perovskite, a fourth layer containing nitrogen (N)-doped graphene quantum dots, a fifth layer containing phenyl-C61-butyric acid methyl ester and a top layer including conductive layer. A method for producing the perovskite solar cell is also discussed.

IPC Classes  ?

• H10K 30/10 - Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising heterojunctions between organic semiconductors and inorganic semiconductors
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
• C01B 32/182 - Graphene
• G02F 1/017 - Structures with periodic or quasi periodic potential variation, e.g. superlattices, quantum wells
• H01F 1/42 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of organic or organo-metallic materials
• H01L 29/66 - Types of semiconductor device
• H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
• H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating
• H10K 71/40 - Thermal treatment, e.g. annealing in the presence of a solvent vapour
• H10K 85/20 - Carbon compounds, e.g. carbon nanotubes or fullerenes
• H10K 102/00 - Constructional details relating to the organic devices covered by this subclass

Abstract

A virtual memory system for managing a virtual memory page table for a central processing unit and a system of encoding a virtual address (VA) is disclosed. The system includes a memory storing an encoded virtual address, a virtual page number having a settable bitfield that is set according to page size and offset, and a virtual memory. The virtual memory addressing circuitry is configured with a zero detector logic circuit and a virtual page number (VPN) multiplexer. The zero detector logic circuit is configured to read bits of the encoded virtual address and outputs the page size. The virtual page number (VPN) multiplexer is configured to select the virtual page number based on the page size and outputs an index to a page table.

IPC Classes  ?

• G06F 12/1009 - Address translation using page tables, e.g. page table structures
• G06F 12/1027 - Address translation using associative or pseudo-associative address translation means, e.g. translation look-aside buffer [TLB]

Abstract

A method for enhancing adhesion of a curable composition to a cement-based object includes applying a graphene oxide (GO) containing dispersion on a surface of the cement-based object thereby forming a GO-treated surface on the cement-based object. The method includes disposing the curable composition on the GO-treated surface of the cement-based object. The method includes curing the curable composition by heating thereby forming a GO interfacial layer and an epoxy resin layer. The GO interfacial layer is between the surface of the cement-based object and the epoxy resin layer. The curable composition includes an epoxy monomer and an amine curing agent. The GO interfacial layer has a thickness of from 0.1 to 10 nanometers (nm).

IPC Classes  ?

• C04B 41/52 - Multiple coating or impregnating
• C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone
• C04B 41/48 - Macromolecular compounds
• C04B 41/50 - Coating or impregnating with inorganic materials
• C04B 41/63 - Macromolecular compounds
• C04B 41/65 - Coating or impregnating with inorganic materials
• C04B 41/71 - Coating or impregnating for obtaining at least two superposed coatings having different compositions at least one coating being an organic material
• C09D 1/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
• C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
• C09D 7/61 - Additives non-macromolecular inorganic
• C09D 7/63 - Additives non-macromolecular organic
• C09D 163/00 - Coating compositions based on epoxy resinsCoating compositions based on derivatives of epoxy resins

Abstract

A method for synthesizing carbon quantum dots (CQDs) including reacting a mixture of macroalgae and ethanol hydrothermally in an autoclave at a reaction temperature between 150 degrees Celsius (° C.) and 250° C. to form a suspension. The method further includes separating the CQDs from the suspension. The CQDs have a size of 1 to 5 nanometers (nm). The CQDs have a Stokes shift of at least 80 nm at an excitation wavelength of 270-410 nm.

IPC Classes  ?

• C09K 11/65 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing carbon
• B82Y 20/00 - Nanooptics, e.g. quantum optics or photonic crystals
• B82Y 40/00 - Manufacture or treatment of nanostructures
• C01B 32/15 - Nanosized carbon materials

Abstract

2S from the gas composition by the composite mixture to form a purified gas composition. The composite contains a CuMnAl layered triple oxide (LTO) and zeolitic imidazolate framework-8 (ZIF-8) nanoparticles. The ZIF-67 nanoparticles are dispersed between layers of the CuMnAl LTO.

IPC Classes  ?

• B01D 53/10 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents with dispersed adsorbents
• B01J 20/06 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group
• B01J 20/22 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising organic material

Abstract

A method for synthesizing carbon quantum dots (CQDs) including reacting a mixture of macroalgae and ethanol hydrothermally in an autoclave at a reaction temperature between 150 degrees Celsius (° C.) and 250° C. to form a suspension. The method further includes separating the CQDs from the suspension. The CQDs have a size of 1 to 5 nanometers (nm). The CQDs have a Stokes shift of at least 80 nm at an excitation wavelength of 270-410 nm.

IPC Classes  ?

• C09K 11/65 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing carbon
• B82Y 20/00 - Nanooptics, e.g. quantum optics or photonic crystals
• B82Y 40/00 - Manufacture or treatment of nanostructures
• C01B 32/15 - Nanosized carbon materials

Abstract

A method for synthesizing carbon quantum dots (CQDs) including reacting a mixture of macroalgae and ethanol hydrothermally in an autoclave at a reaction temperature between 150 degrees Celsius (° C.) and 250° C. to form a suspension. The method further includes separating the CQDs from the suspension. The CQDs have a size of 1 to 5 nanometers (nm). The CQDs have a Stokes shift of at least 80 nm at an excitation wavelength of 270-410 nm.

IPC Classes  ?

• C09K 11/65 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing carbon
• B82Y 20/00 - Nanooptics, e.g. quantum optics or photonic crystals
• B82Y 40/00 - Manufacture or treatment of nanostructures
• C01B 32/15 - Nanosized carbon materials

Abstract

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, zinc, 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.

IPC Classes  ?

• C09K 8/528 - Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates