38 results about "Oxygen Capacity" patented technology

A total delivery oxygen concentration system is provided to supply concentrated oxygen to end users having a variety of oxygen capacity requirements. The system includes a first oxygen concentrating device that may be operated either singularly to produce a first flow of concentrated oxygen or in conjunction with a supplemental oxygen concentrating device. When operating in conjunction with the supplemental oxygen concentrating device, the first oxygen concentrating device serves as a source of compressed air for the supplemental oxygen concentrating device and receives a second flow of concentrated oxygen from the supplemental oxygen concentrating device to provide a combined concentrated oxygen flow to the end user.

A total delivery oxygen concentration system is provided to supply concentrated oxygen to end users having a variety of oxygen capacity requirements. The system includes a first oxygen concentrating device that may be operated either singularly to produce a first flow of concentrated oxygen or in conjunction with a supplemental oxygen concentrating device. When operating in conjunction with the supplemental oxygen concentrating device, the first oxygen concentrating device serves as a source of compressed air for the supplemental oxygen concentrating device and receives a second flow of concentrated oxygen from the supplemental oxygen concentrating device to provide a combined concentrated oxygen flow to the end user.

An optimal material composition that allows for the purification of at least one feed component from a fluid feed stream such that the adsorbent has an oxygen capacity of at least 10 weight percent is described. More specifically, the material is an adsorbent for purification of a fluid feed stream having an oxygen to argon selectivity greater than or equal to a ratio of 3:1 and an oxygen capacity of greater than or equal to 10 weight percent, wherein the oxygen capacity is measured at a pressure in the range of about 9-10 Torr and a temperature of 77 degrees Kelvin after 4 hours of equilibration time and wherein the oxygen to argon selectivity is obtained by dividing the oxygen capacity by the argon capacity of the adsorbent measured at a pressure in the range of about 697-700 Torr and a temperature of 87 degrees Kelvin after 8 hours of equilibration time. The adsorption capacities are measured on a pure component basis.

An apparatus for the preparation of cells for implantation into a living body is disclosed. The apparatus comprises a vessel substantially impermeable to gaseous oxygen; and fluid within said vessel, the fluid having a maximal dissolved oxygen capacity substantially equivalent to normal saline yet having a hypoxic oxygen concentration between about 0% to about 5% of said maximal dissolved oxygen capacity. The bag oxygen concentration level remains low when the apparatus is stored at 22°-25° C. in normal atmospheric conditions for a period of at least 30 days. The present invention simplifies the process of achieving donor cell hypoxic preconditioning for cell implantation, and may be used to bathe said cells to be transplanted for a sufficient time to activate the hypoxic metabolic pathway.

The invention relates to the technical field of polymer materials, and discloses a method for preparing a polyimide / silica composite material and the material prepared by the method. The method comprises the steps that a polyimide substrate is in contact with an alkali solution to obtain the polyimide substrate treated with by the alkali solution; a dispersion solution containing a silicon sourceis placed in a reactor, the polyimide substrate treated with by the alkali solution is placed above the dispersion solution, the reactor is closed, the temperature of the dispersion solution is raisedto a reaction temperature of 100-160 DEG C, and the temperature is maintained for 2-24 hours; the obtained polyimide substrate is subjected to thermal treatment. According to the method for preparingthe polyimide / silica composite material, a uniformly grown silica layer can be formed on the surfaces of substrate materials such as a polyimide film and a polyimide fiber and a nanofiber film whichhave larger specific surface areas, so that not only are mechanical properties of the polyimide material itself maintained, but also the improvement of the antigenic oxygen capacity of the surface ofthe polyimide material is facilitated.

An apparatus for the preparation of cells for implantation into a living body is disclosed. The apparatus comprises a vessel substantially impermeable to gaseous oxygen; and fluid within said vessel, the fluid having a maximal dissolved oxygen capacity substantially equivalent to normal saline yet having a hypoxic oxygen concentration between about 0% to about 5% of said maximal dissolved oxygen capacity. The bag oxygen concentration level remains low when the apparatus is stored at 22°-25° C. in normal atmospheric conditions for a period of at least 30 days. The present invention simplifies the process of achieving donor cell hypoxic preconditioning for cell implantation, and may be used to bathe said cells to be transplanted for a sufficient time to activate the hypoxic metabolic pathway.

The present invention relates to nanoemulsion type synthetic red blood cells having a calcium phosphate coating of controllable thickness, and to a preparation method thereof. According to the present invention, Ca2+ and PO42− coating layers are uniformly and sequentially formed using a layer-by-layer (LBL) coating method while controlling the thicknesses of the coating layers. Thus, the oxygen capacity and oxygen release rate of the synthetic red blood cells can be controlled, and the synthetic red blood cells can be retrieved and reused.

The invention relates to a complex enzyme fermenting system for a solid state fermentation high activity feed. The complex enzyme fermenting system comprises a fermentation room, an air heating box, an air cooling box, an air mixing device, a ventilation and oxygen supplementing device, a water supplying device and a waste water recovering tank, wherein the outlet end of the air heating box communicates with the air mixing device through a thermal air transporting pipeline; the outlet end of the air cooling box communicates with the air mixing device through a cold air transporting pipeline; the outlet end of the air mixing device communicates with the inner part of the fermentation room through a pipeline; the top of the fermentation room communicates with the air heating box through an air circulating pipeline; the ventilation and oxygen supplementing device is arranged at the top of the fermentation room; the water supplying device communicates with the inner part of the fermentation room through a water transporting pipeline; and the inlet end of the waste water recovering tank communicates with the inner part of the fermentation room through a waste water pipeline. According to the complex enzyme fermenting system disclosed by the invention, according to different fermentation conditions required by different fermentation stages of a complex enzyme, the temperature, the humidity and the oxygen capacity of the fermentation room are adjusted, so that the fermentation of the complex enzyme is under the optimal condition, and the fermentation quality of the complex enzymeis improved.

The invention discloses an intelligent energy-saving oxygenation device for modern agriculture standardized aquaculture fish pond. The intelligent energy-saving oxygenation device comprises a floating frame and a balancing weight arranged below the floating frame. Oxygenation blades are arranged on the outer side of the floating frame. A track groove is formed in the edge of the outer side of the floating frame. Teeth are arranged on the upper end face of the track groove. A movable frame body is arranged above the floating frame. A driving motor is arranged on the lower end face of the movable frame body. A speed reducer matched with the driving motor is arranged at the output end of the driving motor. The two sides of the speed reducer are each provided with an output shaft. A first driving gear is arranged on the output shaft on one side. The first driving gear is meshed with the teeth. By adopting the oxygenation blades, water flowing can be facilitated in the rotating process, so that the water oxygen capacity is increased, meanwhile the oxygen content inside water is increased in the mode of conveying an oxygenation medicament into the water intermittently, and the phenomenon that fish schools die from oxygen deficit due to water oxygen deficit is avoided.

The invention discloses a hydrogel ophthalmic carrier containing polymer micelles and a preparation method thereof. The carrier is composed of polymer micelles liquid composed of polyethylene glycol, polyacrylic acid and cyclodextrin and monomeric methacrylic acid Hydroxyethyl ester and phosphorylcholine are mixed and polymerized. Its preparation method includes mixing and stirring cyclodextrin aqueous solution, polyethylene glycol aqueous solution and polyacrylic acid aqueous solution, then standing still, and then obtaining polymer micelle liquid by dialysis, combining monomer hydroxyethyl methacrylate and phosphorylcholine with polymer After the micellar liquid is mixed, it is polymerized and demoulded, and the product is obtained. The novel hydrogel provided by the invention has good oxygen permeability and drug controlled release capability, its performance meets the requirements of corneal contact lenses, it can control the release of ophthalmic drugs, and it has great social and economic benefits.

A configurable oxygen concentrator for providing various flow rates and volumes of concentrated oxygen to a patient includes an electro-mechanical assembly having a housing with a first face, a second face and an outer surface. The oxygen concentrator also includes a first battery, a second battery, a first adsorbent container and a second adsorbent container. The first and second batteries are removably mountable to the first face and the first and second adsorbent containers are removably mountable to the second face to permit modification of the concentrated oxygen capacity and operating life of the concentrator as the patient progresses through different stages of a breathing disease. The first battery has a first battery capacity that is less than a second battery capacity of the second battery. The first adsorbent container has a first adsorbent capacity that is less than a second adsorbent capacity of the second adsorbent container.

A configurable oxygen concentrator for providing various flow rates and volumes of concentrated oxygen to a patient includes an electro-mechanical assembly having a housing with a first face, a second face and an outer surface. The oxygen concentrator also includes a first battery, a second battery, a first adsorbent container and a second adsorbent container. The first and second batteries are removably mountable to the first face and the first and second adsorbent containers are removably mountable to the second face to permit modification of the concentrated oxygen capacity and operating life of the concentrator as the patient progresses through different stages of a breathing disease. The first battery has a first battery capacity that is less than a second battery capacity of the second battery. The first adsorbent container has a first adsorbent capacity that is less than a second adsorbent capacity of the second adsorbent container.

The manganese series deoxidants consist of active component, supporter, adhesive and pore expander, where the active component is manganese oxide and the supporter is molecular sieve. The manganese series deoxidants have high deoxidizing activity, great oxygen capacity and high deoxidizing precision, and may be used in deoxidizing multiple kinds of gas, especially precise deoxidation of gas with high oxygen content. In addition, the manganese series deoxidants have high mechanical strength, no powdering and no chocking, and may be used in industrial production. The present invention also discloses the preparation process of the manganese series deoxidants.

An optimal material composition that allows for the purification of at least one feed component from a fluid feed stream such that the adsorbent has an oxygen capacity of at least 10 weight percent is described. More specifically, the material is an adsorbent for purification of a fluid feed stream having an oxygen to argon selectivity greater than or equal to a ratio of 3:1 and an oxygen capacity of greater than or equal to 10 weight percent, wherein the oxygen capacity is measured at a pressure in the range of about 9-10 Torr and a temperature of 77 degrees Kelvin after 4 hours of equilibration time and wherein the oxygen to argon selectivity is obtained by dividing the oxygen capacity by the argon capacity of the adsorbent measured at a pressure in the range of about 697-700 Torr and a temperature of 87 degrees Kelvin after 8 hours of equilibration time. The adsorption capacities are measured on a pure component basis.

The invention relates to the technical field of sewage treatment, in particular to an energy-saving urban sewage treatment system. An energy-saving urban sewage treatment system, including an aeration tank and a sedimentation tank, an aeration device is arranged in the aeration tank, the aeration device includes a stirring mechanism and an air transmission mechanism, and the stirring mechanism includes a small motor and a A small motor drives the rotating stirring shaft. The side of the upper end of the stirring shaft is integrally formed with multiple rotating vanes. The rotating vanes are inclined from bottom to top to one side and the inclination angle gradually increases. The rotating vanes move toward the direction away from the stirring shaft. Same side slant. The rotary vane rotates and stirs the water flow to form a vortex jet, so that the bottom water and the surface water of the pool can be continuously circulated in the aeration tank, so that the low oxygen content water at the bottom of the pool and the high oxygen content water on the pool surface are continuously With cyclic exchange, the oxygen-dissolving capacity of low-oxygen water is stronger, so the overall oxygen content increases. The oxygen content is further increased by gas transmission through the gas transmission device.