183 results about "Oxygen mixture" patented technology

A pulmonary secretion clearing ventilation catheter and related airway management system is disclosed. The ventilation catheter has a double lumen portion which each lumen of the double lumen portion operably secured to an airway management system so that inspiratory fluid (air / oxygen mixtures, with or without added water vapor) is delivered to the distal end of the ventilation catheter through one of the two lumens and expired inspiratory fluid, pulmonary secretions, and pulmonary fluids are removed from the patent through the other lumen. The expiratory fluid pathway preferably includes a secretion collection system for removing the pulmonary secretions and the like from the pathway, thereby improving operation and safety of the system. An improved inflatable cuff is also disclosed that permits a slight air leakage in the pneumatic seal between the patient's lungs and the environment, thereby facilitating removal of pulmonary secretions from the patient's lungs.

The invention provides a method of functionalizing the sidewalls of a plurality of carbon nanotubes with oxygen moieties, the method comprising: exposing a carbon nanotube dispersion to an ozone / oxygen mixture to form a plurality of ozonized carbon nanotubes; and contacting the plurality of ozonized carbon nanotubes with a cleaving agent to form a plurality of sidewall-functionalized carbon nanotubes.

The invention provides a method of functionalizing the sidewalls of a plurality of carbon nanotubes with oxygen moieties, the method comprising: exposing a carbon nanotube dispersion to an ozone / oxygen mixture to form a plurality of ozonized carbon nanotubes; and contacting the plurality of ozonized carbon nanotubes with a cleaving agent to form a plurality of sidewall-functionalized carbon nanotubes.

A noninvasive system for monitoring the oxygen saturation level of a person subjected to reduced atmospheric pressure for avoiding hypoxemia. The system monitors a person's oxygen saturation level, comparing the saturation level to a predetermined level. When the measured saturation level is less than the predetermined level, the person is then supplied with an oxygen mixture for increasing the subject's oxygen saturation level to a safe level. The person's exposed reduced atmospheric pressure is also compared with a predetermined range of pressure levels. If this predetermined range of pressure levels is exceeded or maintained for a predetermined time duration, the person is then supplied with an oxygen mixture. Additionally, a device is provided for performing oxygen flight planning calculations for estimating oxygen usage for a predetermined flight plan that is based on the above system.

A two-step high density plasma-CVD process is described wherein the argon content in the film is controlled by using two different argon concentrations in the argon / silane / oxygen gas mixture used for generating the high density plasma. The first step deposition uses high argon concentration and low sputter etch-to-deposition (E / D) ratio. High E / D ratio maintains the gap openings without necking. In the second step, a lower argon concentration and lower E / D ratio are used. Since observed metal defects are caused by argon diffusion in the top 200-300 nm of the HDP-CVD film, by controlling argon concentration in the top part of the film (i.e. second step deposition) to a low value, a reduced number of metal defects are achieved.

A chromeless phase lithography mask (30) that does not require photoresist to manufacture has a quartz substrate (32) is etched by using a plasma (38) containing one of a nitrogen augmented hydro-fluorocarbon oxygen mixture and a nitrogen augmented fluorocarbon oxygen mixture. Various hydro-fluorocarbons or fluorocarbons may be used. The nitrogen addition results in etched openings in the quartz substrate that have substantially vertical sidewalls in a uniform manner across the substrate. Surface roughness is minimized and edges of the openings are well-defined with minimal rounding. The etch rate is rendered controllable by reducing bias power without degrading a desired vertical sidewall profile.

Apparatus for preparing and / or delivering ozone or an ozone / oxygen mixture in metered amounts from oxygen, in particular for intraperitoneal administration into an animal or human body, having a fluid source or at least one fluid source connection (1) for providing oxygen, ozone or ozone / oxygen mixture and having a metering outlet (18), with a mass flow controller (5) being inserted into the fluid line from the fluid source connection (1) to the metering outlet (18) and making it possible to control the flow of fluid mass in accordance with a comparison of set value with actual value, with an operative connection existing or being able to exist between the inlet of the mass flow controller (5) and a fluid shut-off device (2) and between the metering outlet (18) and a delivery shut-off device (16), and with electronic control means (14) being connected at least to the two shut-off devices (2, 16) for control thereof.

An apparatus, system, and method are disclosed for in-situ extraction of hydrocarbons from a hydrocarbon bearing formation. The system includes a well drilled through a hydrocarbon bearing formation, and a completion unit that places an injection tube near a fluid injection of a target zone and a production tube near a fluid production point of the target zone. The injection tube comprising a tube with an inner diameter between about 1 inch and about 2 inches. The system includes a heat source, and a thermal conduit fluid that delivers heat from the heat source to the target zone. A mixer mixes an oxygen mixture and an injection unit injects the oxygen mixture into the depleted target zone to combust a coke remainder within the target zone. The system further includes a recycling unit configured to circulate a cool gas through the heated target zone to absorb the thermal energy disposed in the heated target zone.

Reflex sympathetic dystrophy in a human patient is treated by collecting an aliquot of the patient's blood (e.g. 10 cc in volume), and subjecting it simultaneously to ozone / oxygen mixture and ultraviolet light, at a predetermined, elevated (e.g. 42.5 DEG C.) temperature, for approximately 3 minutes. After cooling, the treated blood aliquot is reinjected into the patient via the gluteal muscle. Reflex sympathetic dystrophy is alleviated following a course of such treatments.

The present invention discloses a hydrogen-oxygen mixed gas generator, including electrolytic tank combined by a plurality of electrolytic chambers connecting in series, the electrolytic chamber is cut into a plurality of small electrolytic chambers by a plurality of polar plates, on which is provided with rhombic concave-convex groove; positive and negative polar plate of the electrolytic tank is connected with corresponding electrode of the electrolysing power supply; top of the electrolytic chamber is arranged with vent-pipe which connecting to gas busbar, air-out end of the gas busbar is connected with built-in water block, which is connected with external water block via airway; external side of the electrolytic chamber is arranged with cooling cycle apparatus. Employing multi-chamber electrolysis can make full use of electric energy efficiency, and heating dissipating impression of the water-cooling circulating device set outside the electrolytic tank is obvious, improving quality of hydrogen-oxygen mixture, assuring stabilization of working level, assuring use impression of long time machine opening. The electrolytic tank of entrails uses easily broken bubbles, and electrode plate of concave-convex rough groovy for increasing electrolysis effective area, large gas production.

The invention discloses a real-time control method for denitrification by an enhanced circulating activated sludge method, which belongs to the field of biological denitrification of sewage and is suitable for advanced treatment of urban sewage. The effect of circulating activated sludge method on nitrogen and phosphorus removal is not ideal. The steps of the present invention: open the agitator in the main reaction zone at the same time as entering the water, and carry out the denitrification process under the anoxic condition, and stop stirring when a maximum value appears on the pH value curve and an inflection point appears on the ORP curve; Oxygen is supplied to the mixed solution to degrade organic matter and nitrify nitrogenous compounds, and stop aeration when a minimum value appears on the pH curve; repeat the above steps until the end of the water inflow stage, and react with the aerobic aeration stage end of period. The following process is similar to the traditional CAST method. It enters the sedimentation, drainage, and idle stages in turn, repeating all steps in turn and discharging sludge regularly. The whole process is completed by a real-time control system, which is easy to operate, low in cost, strong in impact load resistance, and not prone to sludge bulking.

A method for making a multilayer interconnect electronic component structure, and, in particular, an integrated circuit semiconductor device made using a copper damascene method is provided. The process of the invention uses a method for pre-cleaning exposed copper surfaces in the structure. The method employs a cleaning composition containing a nitrogen containing material and an oxygen containing material and also optionally a hydrogen containing material to remove the copper oxide film on copper surfaces in the structure. The preferred nitrogen material is nitrogen gas and the preferred oxygen material is oxygen gas. The gas mixture is preferably energized to form a plasma which is used to contact and remove the copper oxide and clean the structure. A two-step process may be used employing a nitrogen / oxygen mixture and then a hydrogen containing gas mixture such as Ar / H2. It has also been found that the advantages of the method include not only removal of residue and copper oxide from the structure without significant dielectric shift of the dielectric, but also provides enhanced metal adhesion to the treated dielectric as well as surface passivation of the dielectric.

The present invention provides a process for producing a craze resistant plastic article. The process includes steps of exposing a substrate surface to a plasma gas formed by introducing a gas mixture containing oxygen and an organosilicon monomer into a plasma chamber to deposit a polymer coating that adheres to the surface of the substrate. An innermost region of the coating adjacent the surface of the substrate is deposited with a ratio of organosilicon monomer to oxygen in the gas mixture that is greater than or equal to 1. An outermost region of the coating is deposited with a ratio of organosilicon monomer to oxygen in the gas mixture that is less than 1. The ratio of organosilicon monomer to oxygen in the plasma gas is altered progressively over time between deposition of the innermost and outermost regions to form a graded coating.

A method and a device for controlling the gas ratio of a breathing machine. The method comprises: a: acquiring an opening-flow rate relationship of an air ratio valve and an oxygen ratio valve of the breathing machine; b: controlling the air ratio valve and the oxygen ratio valve according to the opening-flow rate relationships and a preset oxygen concentration value; and c: fine-tuning the air ratio valve and the oxygen ratio valve according to a current oxygen concentration value and the preset oxygen concentration value. The control device comprises: an acquisition module (401), configured to acquire the opening-flow rate relationship of an air ratio valve and an oxygen ratio valve of the breathing machine; a control module (403), configured to control the air ratio valve and the oxygen ratio valve; and a fine-tuning module (405), configured to fine-tune the air ratio valve and the oxygen ratio valve. Through the method and the device, the oxygen concentration of the gas can be monitored in real time, so as to perform double loop control on the oxygen concentration, so that the oxygen concentration of the provided gas is the same as the set oxygen concentration, thereby improving the accuracy of oxygen mixture control.

A disk drive for storing information representing data includes a base, a spindle rotatably attached to the base, and a plurality of disks having magnetizable disk surfaces attached to the spindle. The disk drive also includes a plurality of read / write transducers for writing to and reading from the plurality of magnetizable disk surfaces, and a cover attached to the base. The cover and base form a substantially sealed disk enclosure. The disk enclosure is substantially filled with a mixture of gases including an oxygen portion in the range of 0.1-3% of the mixture, and a low-density gas portion.

An air-oxygen mixing system for the intelligent respiratory machine without compressed air features that the one-way valve, flow sensor and turbine pressurizer are sequentially installed at the air inlet of Venturi device, the electric proportional valve is connected to the high-pressure inlet of Venturi device for controlling the flow of high-pressure oxygen, and another oxygen channel with electric proportional valve and flow sensor is mixed with the mixed gas from Venturi device in the air mixer for supplying the air-oxygen mixture to patient.

A method of depositing a fluorinated borophosphosilicate glass (FBPSG) on a semiconductor device as either a final or interlayer dielectric film. Gaps having aspect ratios greater than 6:1 are filled with a substantially void-free FBPSG film at a temperature of about 480 DEG C. at sub-atmospheric pressures of about 200 Torr. Preferably, gaseous reactants used in the method comprise TEOS, FTES, TEPO and TEB with an ozone / oxygen mixture. Dopant concentrations of boron and phosphorus are sufficiently low such that surface crystallite defects and hygroscopicity are avoided. The as-deposited films at lower aspect ratio gaps are substantially void-free such that subsequent anneal of the film is not required. Films deposited into higher aspect ratio gaps are annealed at or below about 750 DEG C., well within the thermal budget for most DRAM, logic and merged logic-DRAM chips. The resultant FBPSG layer contains less than or equal to about 5.0 wt % boron, less than about 4.0 wt % phosphorus, and about 0.1 to 2.0 wt % fluorine.

A device is disclosed for the generation of hydrogen peroxide. The device produces hydrogen peroxide on an as-needed basis through the use of electrolysis of water, wherein the hydrogen and oxygen are mixed in the electrolyzer, and the hydrogen and oxygen mixture in water are reacted in a reactor to produce hydrogen peroxide.

A system and method using superheated steam optionally augmented by oxygen for the reduction of nitrogen oxides present for reducing nitrogen oxides present in a wide variety of organic compounds. The system includes a single reaction vessel, or optionally, multiple reaction vessels in operational communication. Reduction takes place quickly when a steam / oxygen mixture is injected into the reaction vessel or vessels. Reducing additives are metered into the reaction vessel or vessels and / or provide energy input to reduce nitrates to nitrogen. The oxygen, when used, allows for some oxidation of waste by-products and provides an additional offset for thermal requirements of operation.

Systems and methods for generating MRI images the lungs and / or airways of a subject using a medical grade gas mixture comprises between about 20-79% inert perfluorinated gas and at least about 20.5% oxygen gas. The images are generated using acquired 19F magnetic resonance image (MRI) signal data associated with the perfluorinated gas and oxygen mixture.

A device is disclosed for the generation of hydrogen peroxide. The device produces hydrogen peroxide on an as-needed basis through the use of electrolysis of water, wherein the hydrogen and oxygen are mixed in the electrolyzer, and the hydrogen and oxygen mixture in water are reacted in a reactor to produce hydrogen peroxide.

A method for fabricating a semiconductor device including: a step of forming a first film on a substrate; and a step of performing a thermal process by scanning the first film with a flame of a gas burner using a hydrogen and oxygen gas mixture as a fuel, wherein the flame of the gas burner is approximately linear.

The invention provides a fuel reforming technology applicable to a mobile fuel cell system. Even if the temperature of the steam supplied from the evaporator 102 to the fuel reformer 107 varies significantly, a reformed gas composition usable in the fuel cell 200 can be obtained using this technique. The system includes: flow rate detecting devices 601, 602 for detecting the flow rate of fuel steam and oxygen to be supplied to the fuel reformer 107; A temperature detection device 600 for at least one of the temperatures of the oxygen mixture. Wherein, the ratio of the flow rate of fuel vapor to the flow rate of oxygen is corrected according to the signal value of the temperature detection device, and oxygen is provided according to the corrected ratio.

The invention relates to a multi-layer spraying and burning evaporation wall type supercritical water oxidation reactor. The multi-layer spraying and burning evaporation wall type supercritical water oxidation reactor mainly consists of a barrel body, an upper end cover, a lower end cover, a burner and an evaporation wall, wherein the barrel body, the upper end cover and the lower end cover are fixedly arranged respectively; the evaporation wall is arranged in the barrel body, and a reactant outlet is formed in the lower end cover. The multi-layer spraying and burning evaporation wall type supercritical water oxidation reactor is characterized in that the burner is a multi-layer burner, wherein the multi-layer burner consists of a central burner arranged on the centers of the end covers and at least one lower-layer burner positioned on the lower part of the first burner, a ring-shaped narrow gap is formed between the central burner and the lower-layer burner; a fuel and oxygen gas mixture inlet is formed in the center; and a sewage and oxygen gas mixture inlet communicated with the ring-shaped narrow gap is formed in the lower-layer burner. The multi-layer spraying and burning evaporation wall type supercritical water oxidation reactor disclosed by the invention is scientific and reasonable in structural design, the blockage and corrosion of a pre-heater, a reactor and a pipeline can be effectively overcome, the amount of purified water for the evaporation wall is reduced, the size of the reactor is reduced and the amount of precious alloys is reduced.

A method of concentrating ozone gas including: causing ozone gas contained in ozone-oxygen mixture gas to be selectively adsorbed to adsorbents which are filled in a non-cooled state in at least two adsorbing cylinders arranged parallel to one another; desorbing the ozone gas from the adsorbents by subjecting a depressurizing process to each adsorbing cylinder during an ozone gas desorption operation; repeating an adsorption step and a desorption step alternately in the at least two adsorbing cylinders; and controlling the adsorbing cylinders, in such a way that one of the adsorbing cylinders is performing the adsorption step while another one of the adsorbing cylinders is performing the desorption step.

An ozone / oxygen treatment system comprising an ozone generator for generating a predetermined ozone / oxygen mixture; and a treatment chamber connected to the ozone generator for receiving and applying the ozone / oxygen mixture to a predetermined portion of a patient's body, the treatment chamber having variable size and shape for enclosing said predetermined body portion and having a structure enabling the treatment chamber to enclose without touching the body portion. Also disclosed is a sensor disposed in the treatment chamber for sensing at least one of ozone concentration, temperature, humidity and bacterial gases. A control unit receives data from the sensor and automatically maintains the ozone concentration and / or heat or humidity at a predetermined range. Arrangements may be provided for directing the ozone to the body portion to be treated, and / or for directing the ozone to the interior and / or underneath a wound biofilm.