34results about How to "Reduce oxygenation" patented technology

The present invention relates to methods for treating restenosis using mesenchymal stem cells, and in particular to treating restenosis following vascular surgery (e.g., angioplasty, stent implantation, rotoblation, atheroectomy, thrombectomy, or grafting).

Glycerol or other reduced carbon sources may be used as a feedstock for the microbial production of chemical products under certain microaerobic conditions. For example, such production may occur under microaerobic or microrespiratory conditions in which electron acceptors are consumed in the reaction as quickly as they are added. In such reactions, the reaction product is at least as reduced as carbon source. Further, during such a reaction, at least some of the carbon source is used to generate cell mass. In addition, microorganisms with modified genomes are provided for carrying out the methods herein.

The invention discloses a treatment method for low-carbon-source domestic wastewater, wherein the domestic wastewater is treated through a dual-membrane process of anaerobic hydrolysis of a biological membrane zeolite and a fluidized ceramsite biological membrane filter, that is to say, the natural zeolite which is cultured by a biological membrane is taken as a filler to decompose organic matters hard to degrade in the wastewater into low molecular weight organic matters easy to degrade through the metabolism of anaerophyte, then the ceramsite is taken as a carrier to conduct aerobic treatment, and the biological membrane formed on the surface of the ceramsite fully degrades the organic matters in the wastewater. According to the invention, the carbon source in the wastewater is effectively utilized, so that a good nitrogen and phosphorus removal effect is achieved without adding any organic carbon source trophoplasm in the treatment of the low-carbon-source domestic wastewater.

The invention relates to an oxygen control slag system for an electroslag furnace and a preparation method thereof, and belongs to the technical field of metallurgical smelting. In order to solve theproblems that the deoxidation capacity of the existing premelting slag is weak and the cost is high, the invention provides the oxygen control slag system for the electroslag furnace. The oxygen control slag system for the electroslag furnace is prepared from the following components in percentage by weight: 30 to 32 percent of self-made premelting slag, 43 to 45 percent of Al2O3, 20 to 22 percentof CaO and 3 to 5 percent of MgO, wherein the self-made premelting slag has the SiO2 content of less than or equal to 1.5 percent through desilicication treatment, and also contains 2 to 3 percent ofaluminum, so that a good deoxidation effect can be achieved; and the CaO, the Al2O3 and the MgO can further improve the deoxidation capacity of the slag system. The oxygen control slag system for theelectroslag furnace provided by the invention is low in cost, simple in preparation process, good in energy saving and consumption reducing effects, and stable in remelting chemical components. The oxygen control slag system provided by the invention is utilized for melting steel, which can make the internal quality of an electroslag steel ingot uniform, the surface of a cast ingot smooth, and detection indicators excellent.

Apparatus and methods are provided for treating patients exhibiting symptoms of hypertension, isolated systolic hypertension, heart failure with preserved ejection fraction, May-Thuner Syndrome or dyspnea by diagnosing and reducing narrowing of a patient's iliac vein caused by extrinsic localized compression using a stent having circumferential differential radial stiffness and delivery catheter for aligning and deploying such stents.