7091 results about "Oxygen supply" patented technology

The transistor characteristics of a MIS transistor provided with a gate insulating film formed to contain oxide with a relative dielectric constant higher than that of silicon oxide are improved. After a high dielectric layer made of hafnium oxide is formed on a main surface of a semiconductor substrate, the main surface of the semiconductor substrate is heat-treated in a non-oxidation atmosphere. Next, an oxygen supplying layer made of hafnium oxide deposited by ALD and having a thickness smaller than that of the high dielectric layer is formed on the high dielectric layer, and a cap layer made of tantalum nitride is formed. Thereafter, the main surface of the semiconductor substrate is heat-treated.

A method of forming a dielectric film includes: introducing a source gas essentially constituted by Si, N, H, and optionally C and having at least one bond selected from Si—N, Si—Si, and Si—H into a reaction chamber where a substrate is placed; depositing a silazane-based film essentially constituted by Si, N, H, and optionally C on the substrate by plasma reaction at −50° C. to 50° C., wherein the film is free of exposure of a solvent constituted essentially by C, H, and optionally O; and heat-treating the silazane-based film on the substrate in a heat-treating chamber while introducing an oxygen-supplying source into the heat-treating chamber to release C from the film and increase Si—O bonds in the film.

A combustion analyzer apparatus and method for combustion analysing a sample, the analyzer comprising a combustion chamber (82) for receiving a sample for combustion therein to form combustion products, and a fluid supply apparatus for supplying fluid(s) into the chamber. The fluid supply apparatus (130-140) comprises a nitrogen oxides (NO_x) generating apparatus (140,190,210,240) and is arranged to supply NO_x into the combustion chamber. A yield of sulphur dioxide in the combustion products may thereby be improved. The NO_x generating apparatus may be operated at a raised working temperature. The NO_x generating apparatus may be provided by an ozonator with a supply of nitrogen and oxygen. A Venturi tube arrangement (246) may draw the generated NO_x into a (carrier or oxygen) gas line to the combustion chamber. Ozone may be supplied to the combustion products to convert nitrogen monoxide therein to nitrogen dioxide. The NO_x and ozone may be supplied by a single device (210,240).

Disclosed is an oxygen delivery device for regulating the flow of oxygen from an oxygen source to a respiratory cannula located on the face of a patient. A host controller coupled to the oxygen delivery device accepts an input from a medical monitor relating to the blood oxygen saturation percentage of the patient. The host controller then regulates the rate of oxygen supplied to the patient based in part upon the blood oxygen saturation percentage of the patient. A high rate of oxygen is supplied to the patient when the controller detects a blood oxygen saturation level below a predetermined percentage and a low rate of oxygen is supplied when the controller detects a blood oxygen saturation level above a predetermined percentage in an order to minimize wasted oxygen.

A long term oxygen therapy system having an oxygen supply directly linked with a patient's lung or lungs may be utilized to more efficiently treat hypoxia caused by chronic obstructive pulmonary disease such as emphysema and chronic bronchitis. The system includes an oxygen source, one or more valves and fluid carrying conduits. The fluid carrying conduits link the oxygen source to diseased sites within the patient's lungs. A collateral ventilation bypass trap system directly linked with a patient's lung or lungs may be utilized to increase the expiratory flow from the diseased lung or lungs, thereby treating another aspect of chronic obstructive pulmonary disease. The system includes a trap, a filter/one-way valve and an air carrying conduit.

A time series of optical tomography data is obtained for a target tissue site in a human (or animal), using an optical wavelength, such as near infrared, at which hemoglobin is absorptive, to observe properties of the vasculature of the human. The data may be compared to baseline data of a corresponding tissue site, e.g., from a healthy human, or from another, corresponding tissue site of the human. For example, a suspected cancerous breast of a human may be compared to a known healthy breast to detect differences in the vasculature. Measures may be made of flow, oxygen supply/demand imbalance, and evidence of altered regulation of the peripheral effector mechanism. The function of the target tissue site may be analyzed, along with the coordinated interaction between multiple sites of the target system. A provocation may be administered to identify surrogate markers of an underlying state or process.

A long term oxygen therapy system having an oxygen supply directly linked with a patient's lung or lungs may be utilized to more efficiently treat hypoxia caused by chronic obstructive pulmonary disease such as emphysema and chronic bronchitis. The system includes an oxygen source, one or more valves and fluid carrying conduits. The fluid carrying conduits link the oxygen source to diseased sites within the patient's lungs. A collateral ventilation bypass trap system directly linked with a patient's lung or lungs may be utilized to increase the expiratory flow from the diseased lung or lungs, thereby treating another aspect of chronic obstructive pulmonary disease. The system includes a trap, a filter/one-way valve and an air carrying conduit. In various embodiments, the system may be intrathoracic, extrathoracic or a combination thereof. A pulmonary decompression device may also be utilized to remove trapped air in the lung or lungs, thereby reducing the volume of diseased lung tissue. A lung reduction device may passively decompress the lung or lungs. In order for the system to be effective, an airtight seal between the parietal and visceral pleurae is required. Chemical pleurodesis is utilized for creating the seal and various devices and/or drugs, agents and/or compounds may be utilized to accelerate wound healing in thoracic anastomosis applications.

A heating furnace for calcining an object to be heated. The heating furnace includes a wall defining a furnace space and configured to receive the object in the furnace space, and a heating device configured to raise a temperature within the furnace space. The heating furnace also includes an oxygen supply channel configured to introduce gases containing oxygen into the furnace space. The oxygen supply channel is formed as an opening in a part of the wall surrounding the furnace space. The heating furnace further includes a gas discharge channel fluidly connected to the furnace space and configured to discharge gases in the furnace space to an outside of the furnace space, and a measurement device installed in the gas discharge channel and configured to measure properties of the gases passing through the gas discharge channel.

An integrated gasification combined cycle power generation system (100). In one embodiment, shown in FIG. 1, a gasifier (108) is configured to generate synthetic gas (117) from a carbonaceous material (106) and an oxygen supply (109) with a cleaning stage (120) positioned to receive synthetic gas (117) from the gasifier (108) and remove impurities therefrom. A gas turbine combustion system (2) including a turbine (123) is configured to receive fuel (128) from the gasifier (108) and a first air supply (131) from a first air compressor (130). A steam turbine system (4) is configured to generate power with heat recovered from exhaust (140) generated by the gas turbine system (2) and an ion transport membrane air separation unit (110) includes a second air compressor (114) for generating a second air supply (113). A first heat exchanger (118) is configured to cool the synthetic gas (117) prior to removal of impurities in the cleaning stage (120) by flowing the second air supply (113) through the first heat exchanger (118) so that the second air supply (113) receives heat from the synthetic gas (117).

This invention relates to methods for reacting a hydrocarbon, molecular oxygen, and optionally water and/or carbon dioxide, to form synthesis gas. The preferred embodiments are characterized by delivering a substochiometric amount of oxygen to each of a multitude of reaction zones, which allows for optimum design of the catalytic packed bed and the gas distribution system, and for the optimization and control of the temperature profile of the reaction zones. The multitude of reaction zones may include a series of successive fixed beds, or a continuous zone housed within an internal structure having porous, or perforated, walls, through which an oxygen-containing stream can permeate. By controlling the oxygen supply, the temperatures, conversion, and product selectivity of the reaction can be in turn controlled and optimized. Furthermore the potential risks of explosion associated with mixing hydrocarbon and molecular oxygen is minimized with increased feed carbon-to-oxygen molar ratios.

A long term oxygen therapy system having an oxygen supply directly linked with a patient's lung or lungs may be utilized to more efficiently treat hypoxia caused by chronic obstructive pulmonary disease such as emphysema and chronic bronchitis. The system includes an oxygen source, one or more valves and fluid carrying conduits. The fluid carrying conduits link the oxygen source to diseased sites within the patient's lungs.

A portable, self-contained device is described for the topical application of oxygen and the removal of wound exudates to promote the healing of skin wounds. The device includes a wound dressing that incorporates at least one electrochemical cell for generating oxygen. The device can regulate the supply of oxygen to the wound at various concentrations, pressures and dosages and is used to produce a high concentration of oxygen at the wound site. By reversing the polarity of the power source a reduced pressure can be created in a reservoir attached to our device. The reduced pressure in the reservoir draws naturally flowing exudates away from the wound. Alternately, two reverse polarity cells are used to alternately supply oxygen and draw away exudates.

An oximeter system includes a blood oxygen saturation detector for detecting blood oxygen saturation information of a subject, a body motion detector for detecting body motion information of the subject, a controller for causing the blood oxygen saturation detector to acquire the blood oxygen saturation information, and causing the body motion detector to acquire the body motion information at a predetermined sampling frequency concurrently and respectively sequentially, and a display unit for displaying data concerning the acquired blood oxygen saturation information and data concerning the acquired body motion information along a common time axis.

A basic life support system (BLSS) includes a processing element and an output element, such as a display screen or an audio output element, for providing an individual with real-time instructions on providing emergency medical care to a patient until paramedics or other healthcare professionals arrive to take over care for the patient. The instructions may be provided as graphics, including animations, as text, audibly, or as a combination of visible and audible elements. The BLSS may be configured for providing emergency medical care to individuals who have suffered from ventricular fibrillation. Accordingly, the BLSS may also include a defibrillation apparatus, an air or oxygen supply, a respiratory interface, one or more sensors, or a combination thereof.

The invention applies to the tea crop production, which can improve the soil structure and provide adequate moisture, oxygen and nutrition to improve the yield and quality in tea crop cultivation. The invention relates to a liquid fertilizer containing microorganisms, organic matters and inorganic matters. The fertilizer adopts biological technology and electrolysis technology which complement each other, takes micro-organisms and mineralized substances as additive, as well as combines with nutritional formula (nitrogen, phosphorus, potassium, sulfur, magnesium, calcium, silicon, boron, zinc, iron, molybdenum, bacterial protein, amino acid, humus, plant nucleic acid, B vitamins, active enzymes and unknown factors which promote crop growth), so as to provide adequate nutrition for crops and improve soil to make the soil conducive to tea crop cultivation. Through biotechnology, the micro-organisms in a dormant state are added to the fertilizer and are activated under favorable environmental conditions to decompose the animal and plant residues, pesticides, fertilizers, heavy metal residues and minerals in the soil so as to change the contents of nitrogen, phosphorus and potassium. Through electrolysis technology, the mineralized substance additive enables the soil to produce a chain reaction to moisture and oxygen supply, so as to gradually change the ion charge in the soil, increase the soil oxygen supply amount, improve the moisture infiltration capacity and strengthen the conditions for microbial activities.

Disclosed is an MCFC power generation system and a method for operating the same enabling significant reduction of CO₂ emission or substantially zero CO₂ emission by minimizing the equipment added to a general power generation facility to a minimum, enabling both high power generation efficiency and high heat recovery efficiency, enabling adjustment of the voltage and output of the fuel cell in a certain range by adjusting the cathode gas composition, enabling great variation of the ratio between the heat and electricity, and thereby enabling variable thermoelectric operation. The MCFC generation system includes a cathode gas circulation system in which the cathode gas is circulated by a cathode gas recycle blower, and a closed loop is formed. Oxygen consumed by power generation is supplied from an oxygen supply plant, and CO₂ is supplied from recycled CO₂. Combustible components in anode exhaust are burned with oxygen, the resultant gas is cooled, and water is removed. The fuel gases in the anode exhaust is recycled.

A highly purified and heat stable cross-linked nonpolymeric tetrameric hemoglobin suitable for use in mammals without causing renal injury and vasoconstriction is provided. A high temperature and short time (HTST) heat processing step is performed to remove undesired dimeric form of hemoglobin, uncross-linked tetrameric hemoglobin, and plasma protein impurities effectively. Addition of N-acetyl cysteine after heat treatment and optionally before heat treatment maintains a low level of met-hemoglobin. The heat stable cross-linked tetrameric hemoglobin can improve and prolong oxygenation in normal and hypoxic tissue. In another aspect, the product is used in the treatment of various types of cancer such as leukemia, colorectal cancer, lung cancer, breast cancer, liver cancer, nasopharyngeal carcinoma and esophageal cancer. Another application is heart preservation in situations where there is a lack of oxygen supply in vivo, such as in heart transplant or oxygen-deprived heart.

The invention belongs to the field of metallurgy, and relates to a method for producing low phosphorus steel by smelting semisteel, which solves the technical problem of controlling the steelmaking end point of a converter within 0.006 percent. The method is mainly realized by adjusting slag-making parameters of the converter smelting by adopting a single slag method, which comprises that: the slag-making materials added in the converter slag-making process consist of 40-50kg of active lime, 20-30kg of high-magnesium lime and 15-25kg of composite slag former based on per ton of tapping molten steel; and the slag-making materials are added in twice. In addition, by controlling an oxygen supply system and an end point control system, the dephosphorization rate of the converter can reach over 92 percent; molten steel containing less than 0.006 percent of phosphorus is obtained; steel ladle slag de-P and alloy re-P are controlled within 0.002 percent. The method can stably produce finished low phosphorus steel containing less than 0.010 percent of phosphorus, and is characterized by simple operation method, small investment on equipment and low production cost.

A portable heat generating device in which fuel vapor and an oxygen supply (e.g. air) are directed through channels contained within a thin, flexible and compliant elastomeric sheet of material. Elongated catalytic heat elements, placed strategically within the channels, spontaneously interact with the fuel-air stream liberating heat energy. Means and methods are defined that permit flameless catalytic combustion to be uniformly extended over the length of each heat element, lowering power density but maintaining the overall power generated, permitting the use of many types of low temperature materials like plastics, polymers, and elastomers in the construction of the heater. The heat generation process is started by pumping an air stream into a reservoir containing a fuel source (e.g. methanol) thereby saturating the air stream with fuel vapor. The fuel vapor is mixed with a another stream of air to achieve a particular fuel/air ratio and directed into channels within the elastomeric sheet, reacting with the catalytic heat elements to produce flameless combustion. The warm exhaust gas is directed to a thermally controlled diverter valve. The valve senses the temperature of the liquid fuel supply and diverts some or all of the warm exhaust gas, as necessary, to heat the fuel and keep its temperature within a specified range. Exhaust by-products are passed into a miniature scrubber module adjacent to the fuel module. The scrubber absorbs any noxious components in the exhaust stream that may occur during start-up or rapid changes in operating condition.