Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

513 results about "Oxygen deficiency" patented technology

Oxygen deficiency is a condition of shortage of oxygen in the blood of any human being. The condition is also known as asphyxia or hypoxia. Such a condition may severely affect the activities of cells, tissues and organs unless he or she breathes sufficient oxygen immediately.

Complex foam extinguishing agent for coal mine

InactiveCN102614615AHigh bonding strengthReduce the drainage rateFire extinguisherSodium bicarbonateMass ratio
The invention discloses a complex foam extinguishing agent for a coal mine and belongs to the technical field of fire prevention and extinguishing. The extinguishing agent is prepared from the following raw materials: main materials are 40 to 60 percent aqueous solution of ammonium bicarbonate or sodium bicarbonate and concentrated sulfuric acid in a solute mass ratio of 2:1-3:1, and auxiliary materials are a stabilizer and a foamer, wherein the auxiliary materials are 0.1 to 2 percent of the total weight of the main materials. Through a test, the extinguishing agent has the foaming coefficient of 20-200 and the foam stabilizing time of more than or equal to 2.5 hours. According to the foam extinguishing agent, the foam of inert gas carbon dioxide is applied to fire prevention and extinguishing of the coal mine, and the foam is diffused in a fire area and fills a fire space, so that the oxygen concentration in the fire area is rapidly reduced, fire is extinguished due to oxygen deficiency in the fire area, temperature is reduced and a fire extinguishing effect is good. The technology also can be applied to coal bed transformation, CO2 foam is easily absorbed by coal to displace partial methane, the recovery ratio of coal seam gas is improved, and CO2 is acid to reduce the generation of secondary precipitates, so that a gas drainage effect is improved. The complex foam extinguishing agent is simple and feasible, and low in cost.
Owner:抚顺正工矿业科技发展有限公司

Juicer with air bleeding function

The invention discloses a juicer with the air bleeding function and aims at providing the juicer which can greatly reduce the oxygen content in a juicing cavity, prevents the browning from occurring in the juicing process and maintains the nutritional components and mouth feel of fruit juice or vegetable juice. The juicer is characterized in that a charging barrel is arranged on the juicing cavity; a juicing mechanism is arranged in the juicing cavity; an output shaft of a juicing motor is connected with a driving shaft of the juicing mechanism; the juicer also comprises an air bleeding device; a sealing device is arranged on the charging barrel; an interconnected cavity is formed by the charging cavity, the juicing cavity, a juice receiving part and a residue part; the mutual connecting parts of the cavity body are connected in a sealing manner; the connecting part between the cavity and any one part is sealed; the cavity is airtight in the juicing process; an air bleeding port of the air bleeding device is communicated with the cavity; and an exhaust port of the air bleeding device is arranged outside the cavity. The juicer can juice foodstuff in the juicer under an oxygen deficiency condition, thereby the browning is effectively controlled, the browning of foodstuff liquid is greatly reduced in the juicing process, the nutritive loss is reduced, and the good mouth feel and appearance color are maintained.
Owner:王晓东

Gold nanocage-manganese dioxide composite nanoparticle as well as preparation method and application thereof

ActiveCN107670040AImprove hypoxic microenvironmentGive full play to the photodynamic effectPhotodynamic therapyGeneral/multifunctional contrast agentsTumor targetManganese
The invention discloses a gold nanocage-manganese dioxide composite nanoparticle as well as a preparation method and application thereof, and relates to the technical field of nanoparticle photodynamic therapy. The composite nanoparticle comprises a gold nanocage inner core and a manganese dioxide shell layer. The preparation method is characterized in that potassium permanganate is reduced by a one-step reduction method; the manganese dioxide shell layer covers the surface of the gold nanocage, wherein the gold nanocage inner core achieves a photodynamic curative effect under the triggering of near-infrared light; the manganese dioxide shell layer is degraded in tumor microenvironment and releases oxygen, so that the tumor oxygen deficiency is relieved, and the photodynamic curative effect is enhanced; on the other hand, the opto-acoustic and magnetic resonance bimodule imaging can also be realized. The problem of insufficient photodynamic curative effect caused by factors such as tumor oxygen deficiency and photodynamic oxygen consumption of a nanometer photosensitizer used in the prior art is solved. The photodynamic curative effect of the gold nanocage-manganese dioxide composite nanoparticle is obvious; the gold nanocage-manganese dioxide composite nanoparticle can be applied to tumor targeted oxygenation photodynamic diagnosis and treatment integration.
Owner:SHENZHEN INST OF ADVANCED TECH

Cerebrovascular and cardiovascular health care therapeutic instrument

InactiveCN101317805AStimulate anti/resistance to ischemiaStimulate hypoxic potentialChiropractic devicesMovement coordination devicesClosed loopRisk stroke
The invention discloses a healthcare therapeutic apparatus of cardiovascular diseases, which is composed of a shell, a keypad arranged on the shell, a display, a cuff connected with the shell, an inflator pump arranged in the shell, a pressure sensor, an electromagnetic valve and a control circuit. The pressure sensor is connected with the cuff and used for detecting gas pressure and pressure oscillatory wave in the cuff. The detection signal output end of the pressure sensor is connected with the signal input end of a control circuit. The control circuit executes closed-loop control on the gas in the cuff via the inflator pump, the pressure sensor and the electromagnetic valve. The healthcare therapeutic apparatus can effectively stop the limb blooding of a user at intervals by repeatedly pressing hard upon the limb of the user, thus inspiring the anti-ischemia /ischemia or oxygen deficiency resistant potential of organism tissue cells, improving the viability and operational capacity of the organism, an organ or tissues under the condition of the oxygen deficiency, having a remarkable effect on preventing cardio-cerebrovascular diseases and treating ischemic mind-brain diseases, and reducing the incidence of sudden death and stroke. Therefore, the healthcare therapeutic apparatus of the cardiovascular diseases is suitable for a family and an individual.
Owner:吉训明 +4

Paper pouring channel tube for casting and shaping technique thereof

The invention relates to a paper pouring channel pipe for forging, which is made of waste paper pulp, sintered filling materials, binding materials, reinforcing agent and moisture-proof agent materials. The new concepts and mechanisms completely different from the prior art are applied to the paper pouring channel pipe, namely the pouring channel pipe is not made of the prior used refractory materials such as pottery, porcelain and the like, and non-fireproof paper pulp fibers are taken as a main component which is added with the sintered filling materials and the like, carbonized and sintered under the using conditions of high temperature and oxygen deficiency to form a carbon sinter with high fire resistance degree and the paper pouring channel pipe which achieves the molten iron scouring resistance and fire resistance degree capable of meeting the current forging process requirements. The paper pouring channel pipe has the advantages of regenerative resource utilization, no forging, energy conservation, environment pollution reduction, socket joint, no sand leakage, convenient use, little dust during cutting, light weight, little resource consumption, no easy damage at normal temperature, crispness after high temperature treatment, easy stripping, easy cleaning, little hard solid waste after pouring, abrasion reduction of a sand regenerating device, improvement on the quality of regenerated sand, reduction on the defective index of forged pieces, no carburization problem for the forged pieces, and the like.
Owner:曹敏道

Municipal life wastewater treatment system with high efficiency and low energy consumption

The invention relates to a municipal life wastewater treatment system with high efficiency and low energy consumption. The system comprises a reinforcement pretreatment part, a jet-type aeration biological filter part and a composite-type biological contact oxidation pond part. Multistage oxygen deficiency treatment, anaerobic treatment, aerobic treatment, sedimentation and filtration are adopted, reinforcement pretreatment and partial oxygen deficiency-anaerobic treatment are carried out on the wastewater, most organic pollutant can be removed and degraded, and the biodegradability of the wastewater is improved, partial aerobic treatment, oxygen deficiency treatment, anaerobic treatment, sedimentation and filtration treatment are carried out on the jet-type aeration biological filter pond, a great amount of organic pollutant, ammonia nitrogen and phosphate is removed, partial aerobic treatment, oxygen deficiency treatment, anaerobic treatment, sedimentation and filtration treatment are carried out on the composite-type biological contact oxidation pond, partial organic pollutant remained in the wastewater is removed and degraded, so that the pollutant removing rate of the domestic wastewater is improved. The system is small in occupied area, low in investment, low in operation cost and convenient in maintenance and management, and reaches the standard A of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB18918-2002).
Owner:陈秋竹

Planting method of submerged plants

InactiveCN103210759ASolve churnOvercomes the inability to penetrate wrapping materialsCultivating equipmentsSeaweed cultivationPlant soilObserved Survival
The invention relates to a planting method of submerged plants. According to the planting method, the submerged plants, planting soil, wrapping materials, ropes and clay are adopted. The planting method comprises the following steps of when the submerged plants are planted, wrapping stems and roots of the submerged plants by using the planting soil, wrapping the bottom of the planting soil by using the clay, and wrapping the outer sides of the planting soil and the clay by using the wrapping materials, wherein the bottoms of root systems of the submerged plants are not wrapped by the wrapping materials; and meanwhile, binding the outer sides of the wrapping materials by using the ropes, and carrying out dispersed planting on the wrapped and bound submerged plants. According to the planting method, as the wrapping materials are adopted, the loss of the planting soil after the plants are subjected to dispersed planting is overcome, so that the floating-up rate of the submerged plants is greatly reduced. As the clay is adopted for bottom sealing, the problem of loss of the planting soil after the plants are subjected to dispersed planting is solved, the defect that the root systems of the plants cannot pass through the wrapping materials is overcome, and therefore the survival rate of the submerged plants is greatly improved. The water-permeable wrapping materials are adopted, and the contact between the root systems of the plants and oxygen in water is enhanced, so that the roots of the plants cannot be rotten due to oxygen deficiency, and therefore the survival rate of the submerged plants is increased.
Owner:TONGJI UNIV +1
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products