KING ABDULAZIZ UNIVERSITY Patent applications |
Patent application number | Title | Published |
20150336807 | HYDROGEN-POWERED DESALINATION PLANT - The hydrogen-powered desalination plant is a multi-stage flash desalination system using hydrogen fuel to power the top brine heater of the plant. The hydrogen-powered desalination plant includes a plurality of flash distillation stages, which each include a flash chamber and a condenser. The top brine heater in the hydrogen-powered desalination plant is powered by the carbon-free combustion of hydrogen gas with oxygen gas. The combustion of the hydrogen gas with the oxygen gas creates a flame, which is used directly to generate steam from atomized seawater, any seawater not converted to steam being collected as preheated brine and passed to the multi-stage flash desalination system for successive stages of flash distillation. Preferably, the flame is generated as a vortex. | 11-26-2015 |
20150270358 | FABRICATION OF GRAPHENE ELECTRODES ON DIAMOND SUBSTRATE - One or more graphene layers may be formed on a diamond substrate by reforming sp | 09-24-2015 |
20150141997 | TRANSORAL REPAIR OF CHOANAL ATRESIA - The transoral repair of choanal atresia is a method for the surgical repair of choanal atresia that uses a transoral approach. The procedure includes the use of a curved drill, a curved shaver, curved grasping forceps, and a suction irrigator. After endotracheal intubation, a retractor is inserted to retract the tongue. A 120° angled telescope is inserted behind the soft palate into the nasopharynx to visualize the posterior choanae. A curved drill is used to drill the atretic plate from the vomer medially to the lateral pterygoid plate laterally. The drilled section of the atretic plate is removed to clear the obstruction. | 05-21-2015 |
20150129184 | THERMAL CONTROL INSERT AND THERMAL RESISTANT HOLLOW BLOCK - A thermal control insert and a thermal resistant hollow block. The thermal resistant hollow block includes a hollow block having a cavity and an elongate member positioned within the cavity that has a generally spiral shaped pathway which forms a generally closed pathway to receive a heated fluid when the elongate member is positioned within the cavity of the hollow block. The generally spiral shaped pathway passes the heated fluid in a forward direction through the generally closed pathway toward a central open area at an inner end of the generally closed pathway of the elongate member. As fluid accumulates in the central open area, the fluid loses kinetic energy and becomes stagnant to provide a relatively high thermal resistance to heat transfer. | 05-14-2015 |
20150122800 | CROSS-LINKED GRAPHENE NETWORKS - The present invention relates to a method for the production of cross-linked graphene and graphene oxide networks, which are selected from aerogels and xerogels with improved performance and characteristics thereof. The invention is also concerned with graphene and graphene oxide networks, which are selected from aerogels and xerogels produced by such processes and uses thereof. | 05-07-2015 |
20150099751 | IN SITU GEL LOADED WITH PHOSPHODIESTERASE TYPE V INHIBITORS NANOEMULSION - The in situ gel loaded with phosphodiesterase Type V (PDE5) inhibitors nanoemulsion was prepared using an innovative approach to reformulate the PDE5 inhibitors in a nanoemulsion, and then loading the nanoemulsion into an in situ gel base. These preparations are administered by intramuscular injection in order to give a depot effect for a period of time that exceeds 15 days. The in situ gel composition gives slow, controlled release of the PDE5 inhibitor. The in situ gel composition is useful for prophylaxis and treatment of some important chronic diseases, such as diabetic complications, benign prostatic hyperplasia, erectile dysfunction, and diseases associated with endothelial dysfunction. | 04-09-2015 |
20140316325 | CSF SHUNT VALVE - The CSF shunt valve includes an elongate, hollow housing and a valve unit disposed within the housing. A plurality of exit ports are formed along the wall of the housing, and a plurality of bleeder ports are formed on the bottom of the housing. The valve unit includes at least one regulating mechanism disposed within the housing. Each regulating mechanism includes an obstructing member operatively attached to a spring. The spring is compressible within a predefined range of fluid pressure. The obstructing member compresses the attached spring in response to fluid pressure acting thereon, opening the exit ports for fluid being drained. The spring-biased obstructing members facilitate self-adjustment for drainage flow. Although arranged in series, the range limits are not continuous with subsequent springs, which safeguards against transient spikes in fluid pressure and ensures independent compression of subsequent springs in response to the predefined limits of pressure for that spring. | 10-23-2014 |
20140251578 | ADJUSTABLE HEAT EXCHANGER - The adjustable heat exchanger provides precise control of oven temperature in a pyrolysis reaction. The heat exchanger includes two sets of hollow non-circular discs, the discs of a movable set being interleaved with the discs of a stationary set. A first working fluid circulates through a heat source oven and through the hollow stationary discs, and a second working fluid circulates through the hollow rotating discs and a pyrolysis oven. The two fluids do not mix with one another, but are always completely separate from one another. Heat transfer depends upon the relative surface area of the rotary discs interleaved between the stationary discs. Minimum heat transfer occurs when the rotary discs are rotated to a position clear of the stationary discs, and maximum heat transfer occurs when the rotary discs are completely interleaved with the stationary discs. | 09-11-2014 |
20140210139 | METHOD OF INCREASING THE HARDNESS OF WURTZITE CRYSTALLINE MATERIALS - The method of increasing the hardness of wurtzite crystalline materials is directed to the production of tool bits and inserts having a hardness approaching that of diamond, while simultaneously providing greater toughness and fracture resistance than diamond. The method includes forming a workpiece of boron nitride having a wurtzite crystal structure (wBN), and optionally combining boron nitride having a cubical crystal structure (cBN) with the wBN material. The workpiece is heat-treated by a defocused laser beam moved across the surface at a rate sufficient to preclude melting or deformation of the workpiece. The heated area is quickly quenched by a water jet, and a gas jet immediately follows the laser path to assure separation of the water from the laser contact area. The result is an increase in hardness of about 88%, from an initial hardness of about 40 GPa to a treated hardness of about 75 GPa. | 07-31-2014 |
20140197669 | CONGREGATIONAL PRAYER CHAIR - The congregational prayer chair is designed to provide needed support for certain worshipers participating in Muslim prayer services. The chair is constructed with a seat and seat-back supported between two connecting arms. The connecting arms are mounted on chair legs. Grooves and tracks are provided on the arms that permit the seat and the seat-back to be moved in a predetermined manner so that a worshiper can attain the required prayer positions without disturbing the alignment of the prayer rows and the other worshippers. | 07-17-2014 |
20140188027 | PORTABLE CERVICAL TRACTION DEVICE - The portable cervical traction device includes a brace having at least a pair of shoulder hooks configured to be worn over the shoulders and on the back of a user. A traction control mechanism is attached to the brace and includes an L-shaped traction bar. A plurality of hooks is attached to the traction bar, and a head sling can be attached to selected hooks for comfortable and proper support of the user's head. The traction control mechanism selectively raises or lowers the traction bar to apply the desired traction on the user. Since the brace is portable, the portable cervical traction device provides greater mobility for the user while maintaining proper traction. The degree of traction can be easily adjusted to account for the degree of recovery of the user. | 07-03-2014 |
20140183404 | METHOD OF MAKING A NANO-PARTICLE PHOTOCATALYST - A novel composition for a photocatalyst Fe doped ZnO nano-particle photocatalyst that enables the decontamination process by degrading toxic organic material such as brilliant cresyl blue, indigo carmine and gentian blue by using solar light is described. In the current disclosure method of making a specific size of the nano photocatalyst is described. Characterization of the photocatalyst, optimal working conditions and efficient use of solar light has been described to show that this photocatalyst is unique. The process described to use the photocatalyst to degrade toxic organic material using the solar light to activate the photocatalyst is cost efficient and cheap to clean our water resources. | 07-03-2014 |
20140183138 | METHOD AND NANOCOMPOSITE FOR TREATING WASTEWATER - The method and nanocomposite for treating wastewater provides a method of treating aniline-containing wastewater with a magnetic nanocomposite. Nickel nitrate, iron nitrate and citric acid are dissolved in deionized water to form a metal nitrate and citric acid solution, which is then pH balanced. The pH balanced solution is then heated to form a gel, which is then ignited to form powdered NiFe | 07-03-2014 |
20140102485 | WATERLESS DISHWASHER - A dishwashing system for cleaning soiled kitchenware, dishware and utensils is provided. The dishwashing system uses a combination of compressed air and blasting media to thoroughly remove grease and loose as well as hardened food particles from soiled surfaces, without hand tool scrubbing, manual rinsing, or use of soap, detergent, surfactants or other chemicals, whether in pre-soaking or cleaning. This heavy-duty dishwashing system accomplishes this thorough cleaning using no or a minuscule quantity of water. The overall energy requirements are low compared to existing systems due to elimination of water, reduction of the heating load and possible use of the heat of incineration. The dishwashing system may include a system for reclaiming used blasting media by separation from food residues. The dishwashing system is most appropriate for locations where freshwater is unavailable or costly, such as arid zones and aboard ships, and where disposal of gray water is impermissible. | 04-17-2014 |
20140072966 | GENETIC BIOMARKERS FOR GLUCOSE-6-PHOSPHATE DEHYDROGENASE DEFICIENCY - The genetic biomarkers for glucose-6-phosphate dehydrogenase (G6PD) deficiency are five haplotypes representing mutations of the G6PD gene on the X chromosome. Each of these haplotypes codes for more than one non-conservative amino acid change. The present inventors have discovered that when mutations of the G6PD gene result in at least two non-conservative amino acid changes in combination, expression of the G6PD enzyme or the stability of the G6PD enzyme is severely decreased, presenting a substantial risk of disease resulting from the deficiency, even in female patients who would normally be considered asymptomatic carriers of the genetic mutation(s). | 03-13-2014 |
20140012034 | Cross-Linked Carbon Nanotube Networks - The present invention relates to a method for the production of cross-linked carbon nanotube networks which are selected from aerogels and xerogels with improved performance and characteristics thereof. The invention is also concerned with carbon nanotube networks which are selected from aerogels and xerogels produced by such processes and uses thereof. | 01-09-2014 |
20130186840 | SYNTHESIZING AND UTILIZING SOLAR LIGHT ACTIVATED NANO-PARTICLE PHOTOCATALYST - Toxic organic materials contaminate water resources and one need to find an easy and energy efficient way to decontaminate water resources. The current invention discloses a photocatalyst Fe doped ZnO nano-particle photocatalyst that enables the decontamination process by degrading toxic organic material such as brilliant cresyl blue, indigo carmine and gentian blue by using solar light. In the current disclosure many examples of characterization of the photocatalyst, optimal working conditions and efficient use of solar light has been described. The process described to use the photocatalyst to degrade toxic organic material using the solar light to activate the photocatalyst is cost efficient and cheap to clean our water resources. | 07-25-2013 |
20130172030 | COGNITIVE RADIO SENSING METHOD AND SYSTEM - The cognitive radio system and method uses a wideband chirp signal for characterization of the spectra that a mobile radio may use. A cognitive radio base station broadcasts the low power reference wideband chirp signal with bandwidth covering the sensed spectrum. At the receiver, spectral resolution in the presence of white noise is achieved by cross-correlating the chirp signal with a locally generated copy of itself (i.e., matched filtering). A Fast Fourier Transform (FFT) is applied to the output of this matched filtering. The FFT output is fed to a decision circuitry, where a threshold value is set to decide the minimum amplitude of utilized frequencies. This process eases sensing computational complexity and improves the quality of sensing, thereby offering enhanced cognition at the cognitive radio receiver. | 07-04-2013 |
20130078374 | METHOD OF FORMING CARBON NANOTUBES FROM CARBON-RICH FLY ASH - The method of forming carbon nanotubes from carbon-rich fly ash is a chemical vapor deposition-based method for forming carbon nanotubes from recycled carbon-rich fly ash. The method includes first ultrasonically treating the carbon-rich fly ash to produce an ultrafine powdered ash, and then reacting the ultrafine powdered ash in a low pressure chemical vapor deposition reactor to form the carbon nanotubes. The ultrasonic treatment of the carbon-rich fly ash includes the steps of dissolving the carbon-rich fly ash in water to form a solution, then sonicating the solution, separating the ultrafine powdered ash from the solution, and finally drying the ultrafine powdered ash. The method provides for total conversion of the carbon-rich fly ash to carbon nanotubes having a variety of differing diameters and lengths, including multi-walled carbon nanotubes with a high degree of wall graphitization and C═C double bonds stretching at 1635 cm | 03-28-2013 |
20120294333 | COGNITIVE RADIO SENSING METHOD AND SYSTEM - The cognitive radio system and method uses a wideband chirp signal. A cognitive radio base station broadcasts the low power reference wideband chirp signal with bandwidth covering the sensed spectrum. At the receiver, a Fast Fourier Transform is applied to the output of a chirp signal matched filter. The filter output is fed to decision circuitry, where a threshold value is set to decide the minimum spike's amplitude to determine frequencies utilized by primary users. Using reference chirp signal and its matched filter eases sensing computational complexity and improves the quality of sensing, thereby offering enhanced cognition at the CR receiver. | 11-22-2012 |