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

507results about How to "Increase incidence" patented technology

Sandwich structure wave-absorbing composite material and preparation method thereof

The invention relates to a sandwich structure wave-absorbing composite material and a preparation method thereof, an integrated sandwich structure comprises an intermediate layer, an upper skin and alower skin, the intermediate layer is a honeycomb material filled with carbon nanotube/cellulose wave-absorbing foam, the upper skin is a quartz fiber cloth reinforced resin material having electromagnetic wave transmission characteristics, and the lower skin is a carbon fiber cloth-reinforced resin material having electromagnetic wave reflection characteristics. Specifically, the preparation method is carried out according to the following steps: 1. the intermediate layer, namely the honeycomb material filled with the carbon nanotube/cellulose wave-absorbing foam is prepared by a freeze-drying method; 2. the upper kin and the lower skin are prepared by impregnating resin with quartz fiber cloth/carbon fiber cloth; and 3. the intermediate wave-absorbing layer is compounded with the upper kin and the lower skin. The sandwich structure wave-absorbing composite material prepared by the method can replace existing wave-absorbing materials, and is widely used in aircrafts, ground weapon equipment, surface ships and other parts that have stealth requirements for electromagnetic waves.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Terrestrial flower water culture domestication method

The invention discloses a terrestrial flower water culture domestication method, which comprises the following steps of (1) plant selection: selecting plants with good growth condition and no pest disease; (2) root washing and pot releasing: cleanly washing plant root system by clean water, removing adherent clay or substrates, and shearing rotten roots or damaged roots; (3) root system sterilization: soaking the roots into KMnO4 (potassium permanganate) solution to be subjected to sterilization treatment after the root systems are trimmed; (4) rooting agent treatment: adopting prepared rooting agent solution for carrying out root soaking treatment; (5) plant fixation: fixing the plant roots and stems by clay particles, then, placing the plants into a fixed planting cup, and placing the fixed planting cup into a water culture container; (6) water culture management: firstly, using clean water for water culture for 6 to 8 days, and then adopting nutrition solution for culture. The method provided by the invention aims at the problem that the terrestrial plants are difficult to domesticate, a set of cleaning, sterilization and root soaking treatment process is created, the later stage overall nutrition solution recipe is adopted, and the water culture root generation rate of the water culture flowers is as high as 99 percent.
Owner:SUQIAN AGRI SCI RES INST JIANGSU ACAD OF AGRI SCI

Preparation method for coated silicon/carbon/graphite composite negative electrode material

ActiveCN106025222AIncrease incidenceReduce the first charge and discharge efficiencyCell electrodesSecondary cellsNitrogenSlurry
Disclosed is a preparation method for a coated silicon/carbon/graphite composite negative electrode material. The preparation method comprises the steps of adding silicon powder and a dispersing agent into deionized water, wherein the D50 of the silicon powder is 1.2-1.5[mu]m; performing ball milling for 2-10h, and screening 100-mesh slurry; adding graphite, an organic carbon source and a binder into the deionized water, stirring and mixing uniformly, and enabling the obtained mixture to be mixed with the slurry, and continuously to stir the mixture uniformly; performing spray drying to obtain a silicon/carbon/graphite precursor; performing thermolysis on the silicon/carbon/graphite precursor under the protection of nitrogen or argon; and after screening, mixing the precursor with a coating agent, and performing ball milling for 1-3h, and carrying out heat treatment at a temperature of 400-600 DEG C under the protection of nitrogen or argon for 2-6h to obtain the coated silicon/carbon/graphite composite negative electrode material. According to the preparation method for the coated silicon/carbon/graphite composite negative electrode material provided by the invention, the initial charge-discharge efficiency of the material can be improved.
Owner:INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI

Use of autonomic nervous system neurotransmitters inhibition and atrial parasympathetic fibers ablation for the treatment of atrial arrhythmias and to preserve drug effects

InactiveUSRE42961E1Increased occurrence of initiation of atrial flutterShorten the construction periodDiagnosticsHeart defibrillatorsNervous systemRight atrium
Atrial arrhythmias, a major contributor to cardiovascular morbidity, are believed to be influenced by autonomic nervous system tone. The main purpose of this invention was to highlight new findings that have emerged in the study of effects of autonomic nervous system tone on atrial arrhythmias, and its interaction with class III antiarrhythmic drug effects. This invention evaluates the significance of sympathetic and parasympathetic activation by determining the effects of autonomic nervous system using a vagal and stellar ganglions stimulation, and by using autonomic nervous system neurotransmitters infusion (norepinephrine, acetylcholine). This invention evaluates the autonomic nervous system effects on the atrial effective refractory period duration and dispersion, atrial conduction velocity, atrial wavelength duration, excitable gap duration during a stable circuit (such atrial flutter circuit around an anatomical obstacle), and on the susceptibility of occurrence (initiation, maintenance and termination) of atrial re-entrant arrhythmias in canine. This invention also evaluates whether autonomic nervous system activation effects via a local neurotransimitters infusion into the right atria can alter those of class III antiarrhythmic drug, sotalol, during a sustained right atrial flutter. This invention represents an emergent need to set-up and develop a new class of anti-cholinergic drug therapy for the treatment of atrial arrhythmias and to combine this new anti-cholinergic class to antiarrhythmic drugs. Furthermore, this invention also highlights the importance of a local application of parasympathetic neurotransmitters/blockers and a catheter ablation of the area of right atrium with the highest density of parasympathetic fibers innervation. This may significantly reduce the occurrence of atrial arrhythmias and may preserve the antiarrhythmic effects of any drugs used for the treatment of atrial re-entrant arrhythmias.
Owner:ST JUDE MEDICAL ATRIAL FIBRILLATION DIV

Perovskite solar cell based on metal nanoparticle interface modification and preparation method of perovskite solar cell

The invention discloses a perovskite solar cell based on metal nanoparticle interface modification and a preparation method of the perovskite solar cell. In the perovskite solar cell, a thin layer of silicon dioxide coated gold (Au@SiO2) nanoparticles is additionally arranged between a hole transmission layer and a perovskite active layer of a planar heterojunction perovskite solar cell, the length of the Au@SiO2 nanoparticles is ranging from 20 nanometers to 60 nanometers, and the width of the Au@SiO2 nanoparticles is ranging from 5 nanometers to 25 nanometers; surface plasma resonance can be generated by the Au@SiO2 nanoparticles, so that the optical path of light in the perovskite active layer is increased, the absorption of the perovskite active layer to the light is improved, and the photoelectric conversion efficiency of the perovskite solar cell can be obviously improved; and compared with the perovskite solar cell without the Au@SiO2 nanoparticles, the photoelectric conversion efficiency of the perovskite soalr cell with the Au@SiO2 nanoparticles can be improved by over 35%. The preparation method of the perovskite solar cell based on metal nanoparticle interface modification, disclosed by the invention, is implemented by a solution technique at a low temperature, is high in repeatability and low in cost, and has a wide application prospect.
Owner:CENT SOUTH UNIV
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