King Fahd University of Petroleum and Minerals

King Abdulaziz City for Science and Technology

Amir Al-Ahmed

Arun M Isloor

Fahad Abdulaziz Alsulaiman

Abdullah Thagib Alshalan

Abdullah Saeed Almarfoie

Aasif Helal

Mohamed A Habib

Zain Hassan Abdallah Yamani

Abdulaziz Abdulrahman Al-saadi

Bassem A Al-Maythalony

Nasurullah Mahar

An unmanned aerial vehicle (UAV) is described. The UAV includes a first battery to power multiple first and multiple second electronic components of UAV. A power consumption of each first electronic component is greater than a power threshold. A power consumption of each second electronic component is less than or equal to the power threshold. The UAV includes a generator and a battery management system (BMS). The generator generates an electrical power through rotation of a shaft of a motor of UAV. The BMS charges the first battery using the electrical power generated by the generator when the UAV is during operation and a stored charge of the first battery drops to a first predefined level, and charges a second battery using the stored charge of the first battery when a stored charge of the second battery drops to a second predefined level.

Self-charging unmanned aerial vehicle

A method of detecting an anti-cancer drug in a solution including contacting a substrate with the solution and measuring a Raman signal of the anti-cancer drug in the solution. The substrate includes a layer of a nanomaterial that is at least partially coated on an outer surface of the substrate. The nanomaterial includes silver nanoparticles and a VCTMXene, where Tis at least one selected from the group consisting of hydroxide (—OH), oxygen (—O), and fluorine (—F). The anti-cancer drug interacts with the nanomaterial on the outer surface of the substrate in the solution.

Surface-enhanced Raman spectroscopic method of detecting an anti-cancer drug in a solution

A cleaning system for a photovoltaic surface includes one or more of an electrostatic dust repellant, a vacuum device, and a compressed air spray device, powered by the photovoltaic array, and configured to function when the photovoltaic surface, including a photovoltaic array mounted on a base, is rotated from a first position with exposure to sunlight, to a second position, where the photovoltaic surface is almost parallel to the ground. The system includes a rotor to turn the base, and hence the photovoltaic surface, from first position to second position, rotating a front surface of the photovoltaic array by over 105 degrees. The cleaning device is housed in a half cylindrical box with an opening for exposure, and is positioned at an edge of the photovoltaic array when in its first position.

Photovoltaic array cleaning system

Photovoltaic panel air spray cleaning system

Pressure and electrostatic photovoltaic cleaning system

Integrated waterless photovoltaic cleaning mechanism

A method of detecting Pdin an aqueous solution is described. The method involves mixing an Eu-based metal organic framework with the aqueous solution and measuring the amount of fluorescence quenching. The fluorescence quenching is specific to Pdand also allows a 44 ppb detection limit of Pd. The Eu-based metal organic framework may be treated with a metal chelator and reused for sensitive detection of Pd.

Europium based metal organic framework for palladium sensing

A hollow fiber (HF) membrane incorporating molybdenum trioxide (MoO) nanoparticles. The membrane may be composed of PPSU hollow fibers that are coated or encrusted with MoOnanoparticles and can be made by dry-wet spinning. The hollow fiber membranes containing MoOnanoparticles remove lead, cadmium or other heave metals from waste water and are resistant to attachment of bacteria and fouling.

Hollow fiber membrane modified with molybdenum trioxide nanoparticles

A method of removing at least one cationic dye from an aqueous solution. The method includes contacting the aqueous solution with an adsorbent comprising a water-insoluble membrane disposed on a substrate. The water-insoluble membrane comprises cross-linked humic acid, at least one alginate, and hydroxyethyl cellulose. The contacting forms a treated aqueous solution having a lower concentration of the at least one cationic dye relative to the aqueous solution.

Use and regeneration of an adsorbent to remove dyes from water

Forming and using an adsorbent to remove cationic dyes from water

A mixed matrix membrane which is porous and has a cross section resembling a sponge. The membrane includes nanoparticle fillers which are also porous. The membrane may be freestanding or supported on a substrate. Methods of making the membrane by spin casting or solvent casting are described. Methods of separating a gas/organic vapor using the membrane are described.

Mixed matrix membrane, a method of making thereof, and a method for gas separation

Method for removing cationic dyes from an aqueous solution using an adsorbent

A method for N-formylating an amine that includes reacting the amine and a formamide compound in the presence of a phosphonic anhydride to form an N-formylated amine. The phosphonic anhydride is present in an amount of 5-100 mol % relative to a total number of moles of the amine, and the reacting is performed for 1-24 hours at a temperature of 45-100&#xb0; C.

Growing community of inventors

Dhahran, Saudi Arabia

Amir Al-Ahmed